I won't buy a used car, or truck, or jeep, but I love used motorcycles.
There are tons of really good choices when it comes to used motorcycles. If straight line, commuting type riding is your thing, it's hard to beat a gen 5 Interceptor. If I have a destination that I have to get to asap, I'll take my old Interceptor every time.
If you can find a 98 or 99 900RR, those are almost as comfortable as an Interceptor. Sometimes, you just feel like having a fairing in front of you.
Can never fault anyone for buying a 919, either. Baffelectomisize the stock mufflers, or do any dual aftermarket cans. Nothing sounds better.