I agree. You can't have it all.
As much as I would love to play any game on my sp3, I know that I can't (nor did I expect to). I check the game's specs before even trying some of them.
For instance, it will play Banished! fine (looks good!)... but will throttle down once in a while (due to heat). I can play Age of Empires II with no problems at all(!), but AOE3 won't run due to not enough graphic power. It also plays CitiesXL with no problem, but Minecraft would probably throttle it down, so I wont even try it (the One version will be out shortly anyway).
It's not that the sp3 won't play games, it will- but it will not run every game. The term "Jack of all trades, master of none" comes to mind. Just pick and choose your battles (pun intended).