charge controllers, why so expensive

hi everyone, once again the hologram effect at work, so I think I need a 440 amp charge controller and I want to pay about 350 -450$ for only 440amps, and I don't even get the dump load, and there mechanical relay type, short life. NOT. I see these types of controllers everywhere on the net. they make no sense.  the sellers have all the answers figured out, if you ask they will answer the question that you didn't ask, they will make it sound almost logical , and make 440amp sound like you can control the world. so lets see what 440amp will do, 3000w inverter on 12v supply would = 250amp draw, so you cant even control two 3000w inverters, wait , its only to control the dump, on there systems,  but they sell the dump resistors of 400w for 250$us but that is only 33-34amps so why the 440amp controller, so it will work with any system they say, but it will dump 5280 watts of power if needed ?. I have never and probbly will never meet anyone with a home wind system that will need to dump 5000+ watts to waist resistors that has any kind of a useful system. these controllers make no sense to me. your system dose need to be capable of 1.5 time the dumping as compaired to charge output capability , that said wouldent it be nice to have one charge controller to properly fit any home system from 100w to 20,000w and work to within .04 volt accurately and for about 40.00$us. this is possible, one site {windandsunpower.com}. this is by far the best controller I have tested and I have 8 controllers besides their ones . the next best is only.8 volt and varies voltage constantly on wind system, is ok for solar. I have 5 of there controllers, 3 different models and all are as good as the others, vary easy to use and set up, they come with vary detailed instructions and all your email will get answered promptly. there smallest controller is controlling a 3400ahr battery bank and a charge of incoming amp of 63.5amp as tested using a diesel gen to make sure no problems arise ,on my test system I don't change my controller settings for any changes to my system at all. it is 2"x2" and will hide any place you need. I use ssr,s for the relays and there is almost no limit to the amperage ability, it will easily run 10 ssr,s at 100amp each = 1000amp and is rated at 25+ ssr,s but one ssr can run another 25ssr,s for a amazing 5000amp and that's with only 100amp ssr,s, its potential is amazing . I have stopped looking at controllers because there is no point , I have the best available, all efforts for this are a waist of better spent time. this I can say was my best purchase so far on any of my wind and solar projects, low cost, high performance, and high accuracy and ability. when your system changes with your needs you don't touch the controller you simply add more ssr,s as needed for your upgrades, { or remove if your testing }. there is a lot of smoke and mirrors with controllers people so please please please do the homework or you will end up with useless pieces of art on the walls to remined you of the importance of doing the homework. there are a lot of scammers in the controller market, they all make theres sound the best, add up the numbers and check the math, don't assume ANY numbers are true, go to { the12volt for any needed calculators }. watts can be added many different ways to give the answers they need them to be ,when any of the numbers are missing , DO NOT ASSUME . thanks for reading. ---------------------------------- A recent update, a friend had the Missouri wind and solar 440amp controller, this is what prompted the article above. today it failed and stuck in the full dump position, he has almost a total lose. batteries wont take a charge and were extremely hot when the problem was found, the wires from the rectifiers dc side have changed to a pink and brown colour, basicly burnt. the controller dosnt work at all, and the gen has not been checked yet. DONT BUY JUNK CONTROLLERS you will pay more in the long run.------------------another update   the system was checked deeper into the problem. when the controller failed, my friend also forgot to mention that he removed one of his dump loads [ 600w worth ]  the gen has one burnt phase , the controller is a total lose, and 3 of the four batteries are junk. basically he removed the safety of the system and the failure was only a matter of time. it was accelerated by the junk controller . please do the home work on controllers, the entire system depends on the controllers ability to do the job properly at almost any voltage your system could create. home work--home work---home work !