Blogging For Dummies?

Remote hosting seems weird to me.  If I want to do a podcast I have to find a remote host for the audio. I already do that on Xanga, and I can blog there, so why wouldn't I just switch from Blogger to Xanga?  I'm not crazy about Xanga, but, hey... it  works.  If, on the other hand, I were to pay for a remote host why not just pay for a personal site that does all of that?  This is sort of confusing.   I'm not the tech geek of the house.  Maybe I should post the audio at Xanga and link it here like I do my music.  It shouldn't be this hard.  Or maybe it isn't hard, but I'm just confused.  LOL  Stranger things have happened.