If you want loud look elsewhere than JL. If you want to beat the ever loving shit out of a driver, look elsewhere than JL. If you want an accurate driver look at JL.
If $ is one of your most important deciding factors look elsewhere than JL. It's not cheap, but it really isn't expensive when you compare JL drivers to their real competition (their competition is NOT Fi or SI or any of the internet brands). Priced them against Focal Nobeliums lately? What about Dynaudio? Amps? Priced Zapco or Genesis or any actual high end amp lately? If you're calling JL overpriced you need to really look at the market. JL may be the most expensive widely available brand, but in the realm of pure, accurate reproduction of the signal fed to them, JL drivers are across the line one of the best. If you compare their price/performance (SPL is not what I'm talking about, if you haven't figured that out yet) to the actual high end brands, you'll quickly see that it is a good deal in the big picture.
But again, if your decision is based on "how loud can I get with the least amount of money" get a clue and quit calling JL overpriced because I can apply your flawed logic to plenty of items and make you look stupid.