Good points, personally I try & buy boxed copies but I have started buying more from Steam basically because like you say it's been around for ages and not likley to disappear soon. They also have special offers from time to time which is cheaper than store prices.
As for onlive, thing is in the UK we always get ripped off because games & other products are often the same amount in pounnds as they are in dollars. A game that is $39.99 in the US will be sold at �39.99 in the UK. With currect exchange rates UK users are paying almost twice for the same product.
If / when onlive comes to the UK I'd be interested in certain games purchased from it for the simple reason I can play the game on my PC then continue on my laptop (a cheap celeron incapable of anything but office work) or tablet. All other games will be from stores or Steam.
