Hey, I actually agree with you. Yes, I buy the right to use the software. And that is what I do. I want to use the software, now, tomorrow, in ten or in twenty years. I _buy_ the right to use the software, I don´t lease it. That´s the whole point. This means: No limited number of installations (as long as only _I_ use the program). No online activation (who knows of the servers are still up in 10 years?) and sure as hell no online verification every time I want to play (if I have to prove that I am not a thief every time I want to play, you treat me like a thief. And if you treat me like a thief, you won´t get one cent from me).
The only games this "lease" scheem actually has merits is online-games, where I pay a monthly fee for playing. Here I realy lease the game. Of course, that is where the big software companies want to go anyway with all the games they make (cloud computing anyone?)
And yes, that is what I do. I buy from companies that let me do those things with the software I buy and I won´t by from those that won´t. Simple as that.
As Xenonauts won´t have any of those DRM scheems, I will get it (pledged at Kickstarter already, actually)