At least here in the USA. I have a few years old Philips 42", lately and with next gen got a hankering for something bigger... I also sit 10+ feet away from my TV, and 42" is on the small side for that distance.
There was a deal for a Vizio (generally considered a good cheap brand, though not up with Samsung) 60 inch at Target for 799...then they were offering various discounts (10% off all TV's with their cartwheel app, 5% redcard discount, etc) such that I could get 25% off. the total price incvluding tax for the TV would have been $650! (before tax $600). Kinda amazing! Also this TV is tested at displaylag.com as having very low latency, so it'd be great for gaming! That deal has since passed though. I considered it.
I could craiglist my current Tv for maybe $250, coulda had a quality 60" for $400 net! Amazing!
But I was at Wal Mart tonight and they had Vizio 60" for 798. Vizio 70" for $1498! Even a 70" is kinda affordable.
BTW screen sizes dont scale linearly. A 60" TV is over double the screen area of my 42". I use this site to check it out http://www.nicetaco.com/tv.aspx
For example, square inches of viewing area:
42"=753
50"=1068
55"=1292
60"=1537
70"=2093
A 70" is almost THREE TIMES my 42" screen area...









