It is amazing how inexpensive older Bo's are. You can buy a 1950's one for less than the price of your 150! It won't be in as great shape, but it will be retract, 150kt+, complex airplane. Newer Bo's are very nice too. They all fly like you're riding in a luxury sedan.
I considered one before I got my 182, but decided I preferred the high wing, roominess, and two doors over the complex features. Then, I'm not really going cross country much so the extra speed wasn't a big factor for me.
I may still get a Bo someday, especially if I decide to go for 6 seats sometime.
You have a very nice 150. The paint scheme reminds me of my 182.
