Need Guidance: Galaxy SII or wait.

I swore that I'd only get a Nexus. I advised others to go Nexus if they want updates and the yadda yadda. But main case in point, my local carrier has just reduced the price of the Galaxy S II to an all time low for a limited time. I'm thinking of getting it, but I STILL wanted to go all Nexus. Samsung said the GSII would get a JB upgrade, but who's to tell they won't just go back on their word sometime later?


Advise me why I should NOT get it. Because come Monday... I may just jump in. Still on the fence. Argue with me.