and i just thought about this some more....
Angel didn't choose to have a soul
Spike is making the choice to go to africa to get his soul (if they play out the soul idea)
and...even if he did end up with the whole curse thing, it wouldn't matter anyway because he still has the chip in his head. at the end of last season and all of this season spike has loved buffy, but its still not good enough for her. i think, if he goes to africa to get his soul back, it'll prove just how much he loves her and maybe she won't be embarrassed to love him back anymore because he has a soul (like angel). its spike's last effort to prove his love and to prove he's not evil anymore. if he goes there to get the chip out and then continues to be good, it won't do anything for buffy, she'll still see him as an "evil blood sucking fiend" no matter what he says or does.
and i'm thinking...it would be stupid if spike goes to africa to get his chip out. i mean, wuts the demon gonna do? surgically remove it...i don't think so...think supernatural. i heard in the last scene the demon reaches into his chest anyway, and then it fades/goes to black---credits
AND THAT'S ALL I HAVE TO SAY ABOUT THAT
::wave::