Whenever you upgrade its pretty silly to "upgrade" to something with the same resolution. Buy a Dell 3200 or the BenQ 6200 with free bulb if you are going to upgrade. I used to have an X1 and upgrade to the Dell then returned since I need something with more light to the PB 7200. The colors arn't that great but its bright and has a short throw perfect for me. I really enjoyed the X1 colors but I'd take worse colors over resolution any day.
Chris
Chris