Heroes VII

Finances aren't an issue for me. But! I have two computers at home, one for my wife to play Alawar games, and the other has all the Heroes games, as well as Knight and Armored Princess. Now, do I need to buy a new system because of Heroes VII? And what if I don't play it? I installed Heroes VI, but haven't played it. It's a bummer. In my opinion, the graphics in Katauri are better than in Heroes VII. Overall, I'm surprised.