Well, I got 32bit on my laptop with W7, because the 64bit didn't work, but now I fixed that, So I will reinstall it with 64bit. I'd say it's worth it. I think not all hardware say it's 3,3Gb, my laptop says I have 3072MB RAM, So I think 64bit is worth it. It's worth it anyways, if you're planning to get more then 4GB ram, and like dawesdust_12 said, the support for 64bit is good, so I see no reason not to get it.