Actually Wilson uses focal for all 3 mentioned drivers, depending on model of course. As for the sum of the whole theory, I actually agree. I also agree that no speaker actually is "worth" $20k plus. I just feel that Wilson is one of the biggest offenders when it comes to cost/quality ratio which in all honesty kind of sucks. Companies like Revel,Arial,B&W are all also overpriced just like ANY speaker, but when you have a chance to actually take apart the speaker(s),you can see which mfg. took more time and care in the quality of parts used and selected. One reason why Ive always been a fan of Revel(and why I bought em for my own personal system). THey dont just sound great, but they look great, and their parts quality across the board is excellent.
I also have to add that my feelings on their sound is nothing more than an opinion so if any Wilson owners feel offended, it wasnt meant to be voiced that way.