Quote: "to find out when coding an installer if for the general user if its really worth allowing you to select where to install too..."
It's extremely important. Not only do you have to worry about the drive it's getting installed to, people move their folders around, for example, my Documents folder is not in it's normal place, I move it to another drive so that if I format or the drive becomes inoperable I don't lose my documents.
On top of that, people who dual boot a lot of times don't use the c: drive for their windows installation.
And then there's people who don't want stuff installed to their c drive but another drive.
In fact, unless you have to, you shouldn't even use an installer, they're really annoying when trying out demos and stuff.
The greatest multiplayer text adventure ever...