Maintenence eats my dad's lunch but he is on his second BMW. Both of themail have been considerably cheaper to buy than a goldwing. Not sure anyone else makes a comparable bike, so they have always seamed cheap to me.
I've owned Harleys, BMWs, Hondas, Yamahas, and a couple Kawasakis. The kawasaki has been my favorite thus far.
I've ridden a lot of different bikes and honestly I liked ALL of them except one, it was a hardtail chopper setup like Peter Fonda's chopper in Easy Rider, sumbitch was beautiful but that thing hurt the hell outta my back and butt and was hell to get turned around in a tight spot.