I'm also 43 and just got back into riding BMX after about 30 years. I test rode a few new bikes and just didn't like the way they felt. When I rode standing up the top tube was down by my ankles. it just felt weird. I then bought a mid school 1999 Haro Zippo on craigslist. That felt better but still wrong so I got rid of that too. I finally settled on what felt right to me, an old school bike. I got a 1989 Redline RL Two-Five. The top tube is 20.75 which is pretty long especially for that era. I also have a laid back seat post which opens the bike up more and makes for a comfortable feel when just riding around. If I had the dough I would get one of the newer Haro Lineage bikes. You get the best of both worlds. A bike with new school technology and durability but the look and feel of an old schooler. A 2016 Haro Master DMC would actually be my dream bike at this point but tha's too much $$$ for me right now. The Redline was $300 and that was already pushing it