My Suzuki DRZ400S has 35hp. That's it. It may be a nobby tired dual sport, but it does everything I'd want a Cafe racer to do on the weekends. Every person that has called it: "Ugly, lame, gay, weak, geeky, or dirty", has given the bike back to me with a huge grin on their face. It's a fun bike. 35hp still makes it as fast as a mustang 0-60. And I can ride up and down concrete staircases for a shortcut.
85hp is plenty. Riding bike that won't kill you every time you twist the throttle is alot of fun. Especially after suffering on a Sportbike the day before. If it's a lightweight, forgiving, comfortable bike, it's going to be fun.
The old Buels were fun because they were comfy and relaxed. Same with the Monster and Hypermotard. They didn't have to be bonkers fire breathing dragons.