I think Vorpy was offering criterion to determine whether or not Sonic Shuffle was cel shaded, though no one thought otherwise. Didn't I already offer some sort of cel shading explanation in Ask Chromus?
Well, sorry, but you can't really blame me for forgetting a post that happened so long ago. When Vorpy answered the question, I had no idea what he was referring to.
On topic: Yes, cel shading is a good style of animation, so long as it is executed properly. When it's done poorly, it can ruin a game.
Wouldn't it be funny, now, after the success of TWW, if other companies started jumping on the bandwagon and making cartoon-cel shaded versions of their major properties? (Not Killer-7 type cel shading).
Grand Theft Auto: Cel City
Cel Gear Solid
Celo 2
Microsoft Flight Celmulator
There are PLENTY of games that aren't cel shaded, so it's less of "lots of games are becoming cel-shaded", and more of "lots of games aren't cel-shaded."