the bottom line...price

Have you decided between LCD or DLP? Have you decided between 4:3 or 16:9 projector and screen? The Z1 is 16:9 and the other 2 are 4:3. I don't think you should consider the S1, it doesn't even have a zoom lens. You should also consider the X1 and Benq 6100. I have the X1 and love it. Go to Projectorcentral.com and read away, great site. You have to narrow down your choices to DLP or LCD, then 4:3 or 16:9, and go from there.

you don't alwasy get what you want

sometimes you get what you need...

Are you saying you bought an LCD, or you want to buy an LCD? The Epson Home 10+ is a nice LCD projector if it's in your budget. I almost bought it, then I saw the X1 for $799. I also checked into the Z1, but the short bulb posts and poor service scared me away.