You would imagine so wouldn't you? Unfortunately if you install it 3 or more times you'll have to call Microsoft because it won't "activate" over the internet anymore. They may tell you you've activated it too many times and you need a buy a new copy. It almost happened to me with a guy on the phone. I got really pissed off and asked for his super visor and I complained to him and he reactivated my copy of Windows.
I guess you do have a point with the other products as well. I honestly wasn't aware they were just as bad as most software makers.
Odd, I installed my copy of XP more times then that before I got a new computer with Vista on it, with no problems. I've also had no problems reinstalling Vista twice.
The thing here is that XP64 was never sold or intended as an OS for home use or for games. That it happens to work is nice. But if you tried to use a DVD player as a boat anchor and it didn't work very reliably, the company wouldn't take your complaint very seriously.