You can find tonnage of second hand projectors of note for that money, but beware. Second hand is an evil market for projectors. They operate at internal temperatures that make the insides of easy-bake ovens look cold, and heat is not the friend of electronics. Good replacement bulbs are very expensive, often hundreds of dollars, and many secondhand units are sold without lamps, or with lamps about to burn out, or replacement bulbs of dubious quality because they were cheap. Rip-off lamps are rife in this market. Make certain that your purchase is from a reputable re-builder or merchant with iron - clad warrants. and with a guaranteed OEM lamp installed of low hours. DLP projectors often get sold because their color wheels are going out of sync, or are deteriorating. Another expensive repair problem. Another issue is connectivity. Newer units accept HDMI inputs, older models do not. You should be reading up on projectors generally right now. You of course know that they are not televisions, but monitors, and do not decode material or select channels, or contain tuners, or play discs,output audio, so on. Usually they connect to cable boxes or Computers. The general specs of new units will give you a thumbnail view of what might be wanted or expected from older models. Reputable brands are Epson, Infocus, BenQ, Viewsonic, Sony, to name a few that have been in this market for a while.