Why do A/V companies continue to waste their time and my money putting headphone jacks on the front of their receivers? Every amp I've ever owned or listened to, whether it was hi-end or mass market, all seem to have one thing in common...their headphone inputs always sound like total crap!

It seems most manufacturers don't take these things very seriously, so why bother? I'd rather have 10 more watts or some other more useful feature.
And besides, any serious audiophile who was an headphones enthusiast would probably have their own dedicated headphone amp specially made for that purpose. Does anyone know of any makes that have decent sounding headphone inputs?