That's kind of an open-ended question you've asked, but I don't mind rambling on!
The Vulcan Verses
is the area of the forum w/ accepted practices and recommendations and such.
Many of these bikes came from the factory w/ very little in the way of lubrication on the drive-shaft splines. That is something that is relatively easy to take care of and definitely important. You would want to get yourself some high moly content lube (Honda Moly 60 is what I use), and then take the back wheel off. There are splines in the back wheel on the output side of the gearbox that should have moly 60 on them. Then pull the gearbox off the drive-shaft tube and grease the input side of the gear-box as well as both ends of the drive-shaft. Details are available in the Verses, I believe. Honda Moly 60 is good stuff, so likely would not have to do the drive-shaft again unless you are in there again for some other reason. I generally add a little to the back wheel splines whenever I change tires, though that is likely not really necessary.
The electrical system is a known point of failure on these bikes as well. You may want to upgrade the regulator/rectifier and move it away from the "goat's belly"? I did that when my stator failed at 16,500 miles. Also added a voltage monitor to kind of keep an eye on things, and did the "Tuxedo mod" at that time. May not want to do all that 'til you have a reason, though.
The automatic cam-chain tensioners are another problem area. Generally, they'll let you know they're on the way out well before there's any actual harm done, so probably not something to worry about right away. Lots of members have replaced their automatic tensioners with manually adjusted tensioners as the factory replacements are no better in terms of longevity than the originals.
Chances are with an '02 you'll be thinking about changing out coolant, brake fluid, fork oil, final drive, etc. May want to do fork seals? I did mine on the '03 as the dust caps were cracking and showing their age. . . .
Then there's the mirrors, bags, seat, paint. . . . Lots of fun!
Wanted to add--$1000 is a steal for an '02 w/ 11,000 miles, in my opinion!!!!