Just no possible way i would trade a BO for a Street Glide, and I ride a LOT of Street Glides. Whenever I am on the West Coast at our HQ I rent one to ride the PCH, and I rent them frequently when on vacation(all the HD dealers have for rentals typically are Ultras and Street Glides, so it's an each choice for me). I am probably on them 35 to 40 days a year.
Don't get me wrong, the Street Glide is a super cool bike. Comfort for all day riding and blaring the tunes while driving around Big Sur is awesome, and much better handling than the Ultras. I also really like the Batwing front end. But I like the more nimble(a realtive term with the size of these bikes!) handling of the BO. I'm just not a touring guy. I wouldn't pack stuff in side bags for an overnighter, just not my thing, so the lack of bags is no big deal.
Overall just too much bulk for me to live with everyday.
But hey, what do I know, i think the Street Glide is still far and away the best selling model HD has...