I would like to upgrade our tv. We currently have a 60 inch Panasonic plasma....and thinking about upgrading to a 75 or 80 inch screen. Budget is $3000 - $4000. From the research I have done through Costco's website, my choices are: Visio Razor 80 inch at $3700, Sharp Aquos 80 inch at $3200 or Samsung 75 inch at $3900. Basically, we will use this tv to watch movies and some sporting events.