Every bodies needs and wants are different. Wants aren't necessary,needs are. You(meaning anyone)may "want" your Tv on the wall, but it doesn't make it wrong. In fact,that was part of the inginuity of the flat panel,because of small living spaces. Just like the flat panel computer screens,to make more desk space. 90% of everything people do is for show and not go. Namebrand clothes, chrome rims on cars and so on. Hell,i'll one farther, HDTV. Is it really a necessity? Don't answer,it's a hypothetical question.
If people are going to go through with placing an expensive piece on the wall, a good majority of them are going to do it right and the best way possible. Four holes in stone is an easy fix. When you sell your home or move to another location you have to patch holes in walls from pictures or paintings anyway. No big deal. Or in case like my home,chances are the next owner will want their Tv in the same place as mine seeing it's the "only place"(necessity) for one. Besides when it comes time to sell,i'll include the Plasma and all the inwall speakers with the home. By then maybe all of Tv will be in HD and then i'll upgrade from my EDTV to HD.
I'm like Bill. There are DVDs I "want". I can go down to the store and buy new for $15 or more, but why? It's not "necessary",there are plenty of outlets on the web to buy used which are just as good. In fact better,because it was cheaper. It all comes down to individual wants and needs, neither is wrong unless you can't afford it. It's sort of like the LCD vs. Plasma debate. I don't call the LCD people names because I like Plasma and feal it's better. It's ultimately what pleases them,even if it is lousier display. Just kidding folks..