Wow, that looks much better than I expected. Looks very nice, especially for the age. A little light buffing on the scoops to bring out the original luster, a bit of shine on the wheels, and it's a looker!
$3300 is the KBB for a 1990 in excellent shape, so the price isn't too bad if it's in good shape.
Me recommendations if you want a 1990 but also are interested in a better/safer bike:
1. Replace the front brakes with 2, 4 or 6 piston calipers. A 1990 is using early 1980's braking technology, which wasn't very good for this level of power even when new. You can talk to Sean Morley about options for your year.
2. When you need to replace the tires, look for a design that is fairly recent. Metzler , Shinko and Avon (others as well) make tires vastly improved over the Dunlops that 1990 has. Remember, with motorcycles grip is EVERYTHING!
If that deal doesn't work out for you, keep in mind that getting a post 1996 gets most of the upgrades of the later years (better brakes, better suspension, screw-on oil filter) and likely won't cost any more if you are patient. If the 1990 color is your thing, you can either repaint to match the 1990 color or scour eBay for the bodywork. Or go lightweight with Exactrep's carbon fiber body parts and then paint them the color you want!
unk:
In any event, good luck. Remember that patience in searching can pay off.