I bought this bike for $800, they go often for about $1500 on Ebay.
It has plenty of power for a mid size bike, and the direct drive transmission is awesome. It is fast, oh yeah, very fast, and has surprised many, many a friend at the power it offers even with two riders on it.
Gas mileage is about 60-65 mpg if you ride like a sane old granny and keep it at 55 mph. However, even at the near $3 gallon price of today, it will perk out at 45 mpg for the insane, throttle thrushing, middle-agers who like to hot dog the bike in the 80 to 80mph range (I personally know).
Maintenance, about minimal. It is very dependabe. I have only had to do the typical bare, minimal maintenance one would expect: oil change, spark plug change, new battery. Oh yeah, replaced the clutch cable and a worn tire (had the original tires on it).
I did also buy a small windshield, a definite plus, adds a sporty look, without all the bulk of a faring, and it adds three thousand percent enjoyment to riding.
If you are thinking about getting a used one, do it now. These bikes I believe in a few years will be vintage worthy of higher dollars. They are a nice collectible. Most people don't realize they are over a quarter century old.
Oh, if you plan long rides, invest in a larger seat, otherwise it is a great bike, nothing else to explain.
John, North East TN.