"IME, to get a REALLY good sounding Line Array takes really good drivers."Actually, sometimes I think one might be better off builing a conventional speaker with really good drivers, rather then a line array with cheaper drivers, assuming the same budget.
"If you think you can take a bunch of 50 cent drivers and see God by constructing a line array, fine."
You've never actually built a line array, have you? You're just talking about it. You aren't aware of the characterisitcs of what multiple speakers do to FR, distortion, dynamic range, etc. If you'd actually built one using speakers that one would never use when there is only one(but now you've put 20 of them or 30 of them in a row, and electronically crossed them), you would know that what you are saying only has reference for those who must b elieve the bought the best and paid the most.
You do need to stick with either store bought, or with somebody's kit system. You don't want to be doing this on your own.
Marlboro