I have one that came with my Honda (I get lost waay too easy and I'm STILL an explorer). . .the S.O. is looking for one for his vehicle. He's looked around and found one that has bluetooth capability, a back-up camera, XM radio. . .I dunno, a buncha bells and whistles mine doesn't have LOL I think it's linked to a satellite, so you'd have a monthly fee as well with that one. If you don't have a satellite service, you'd not have the alternate routing available around traffic clogs, etc., but you would be able to keep current maps by buying new ones every few years. I think he said the one he's looking at now runs around $1,200, but you can get navi systems for much less than that.
Life is just a chance to grow a soul.