Gnome 3 vs. Gnome 2 vs. change
Exploring different desktops is a good thing. I’ve recently converted to GNOME 3 ("hallowed be its Name in all the earth, etc.") and I admit freely to enjoying it (a lot).
I also have to admit that part of the reason I’m enjoying it is because it’s a change.
Change is good. It forces you out of your comfort zones, and makes you find new things, very useful things.
For example, look at Terminator vs. gnome-terminal.