Should I switch from Windows to Mac?

I just switched over to a imac at work because I got it for free and it was more powerful then my last computer. So far things have felt mostly the same, you just need to get used to new keyboard shortcuts and I will say I like the clean look of the os. That being said I don't like how macs aren't know for being easily upgrade able like a custom built desktop so if you plan to game at all or want to keep the same machine and be able to upgrade the power in the future, your better of spending that money on a powerful custom built machine.