I was just wondering how often you guys upgrade your TV sets. I've been wanting a progressive TV for a while but since my nonprogressive TV (Pioneer Elite SDP5193) was a top of the line one and spent a lot of money in years past I'm a bit hesitant to upgrade it like the rest of my components especially if when I can't afford another Pioneer Elite. I'm not sure if the Toshibas or Panasonics or Sonys will offer much of an upgrade to be worthwhile for the money. Any thoughts? How fast does technology change in this area?