Ubuntu installed, now what?

[Nocte]

So, I've been using 10.10 on a USB thumbdrive at work to boot into computers that won't boot into Windows for whatever reason. I decided, out of curiosity, to load it onto my laptop as a more permanent solution, since I have been dinking around in it on everyone else's machine and it seems pretty neat. So, I installed it, upgraded to 11.04, and customized my desktop and a few of the other trivial customizations.

Since I did all this out of sheer curiosity and not out of a desire to gain some new ability, I'm left wondering if I gain anything (aside from another set of OS-specific applications) by running this second OS (I'm using a dual boot with Win 7 Pro).

Eh?