You can remove the painful Unity interface with great ease, once you have the machine in front of you. There is no requirement to use Unity as an interface shell by anyone other than Canonical. If you don't like it, switch to another interface when you log in; its that simple.
As for 'very little games', I have to say this: LOL! Linux has thousands and thousands of games, and this continues to grow day by day. Steam may not have everything (yet), but its only a matter of time before the floodgates open: on the other side of that "new thing called Steam on Liux" lays a massive horizon of gaming on Linux that is unrecognized, unseen, but will soon be utilized once the pipe is in place.
Linux has thousands of great games ready for the consumers; the veil of the 'mainstream groupthink' is just preventing a lot of smart people from seeing this fact, but I would wager that Steam and Alienware are indicators that in fact, some very smart people are entirely aware of the potential of whats to come once these lines of communication are open.
So this is nothing but positive. Even if you don't want to be an early-adopter for this line of communication, its the line of communication which has been deficient; not the lack of content. The content (Games for Linux) is well and truly out there, it is ripe for harvesting, and this is the beginning of that effort ..