Axiom Home Page Forums General Discussion Technical Questions THX, what's the big deal?

Hello all, I am new to the forum and just had a quick question for the experts! In a real-world application (livingroom setups specifically), what emphasis should be given for THX processing in searching for a new receiver? I know what THX is and the different levels but does it have real-world significance? Take Denon for example. You have to go all the way up to a $4,000 4806CI (specs straight from their website) receiver to find one with THX processing. On the other hand, a Pioneer VSX-1016 WITH THX can be had for $499 (again, retail pricing and specs from their website). So, what weight should you give THX when shopping for a receiver? Just curious, thank you for taking the time to read my post.