The first and most important thing you need to determine prior to going out and purchasing anything is finding out why you want/need this particular product. It is no different when going out to buy a Plasma TV. They offer many purposes, whether it is for home entertainment, or business. By determining the purpose of this machine, you will certainly be able to purchase a product that may not be the best overall product, but will fit all the needs you will require, while also saving you some money.
Typical questions to ask yourself prior to shopping for a Plasma TV are:
Is this for home or business use?
What is my budget?
Do I want to display HDTV?
What screen size is right for me?
Will this display be used primarily for displaying computer data or video?
Many of the televisions have the same qualities, and options. The two biggest factors to consider are size and budget, which are directly related (as size goes up, so does price).