swedishfriend wrote on Feb 12, 2013, 04:11: How many low budget downloadable games have demos? 100% or so. How many disc only games are there and how many of them have demos? Not as many. What we really are seeing is that there are more shitty games that have demos than quality games with demos. There is no general rule that makes having a demo absolutely detrimental to sales. If your game isn't worth buying then a demo will hurt sales otherwise it will help.
I'm not sure if he counts XBLA games, but yeah, mostly.
The biggest games, like CoD or ME, don't bother with demos because they're unnecessary. Smaller games do because they are more desperate to find an audience.
So it's no surprise that games without demos sell better - they often don't have demos simply because they know they'll sell better.