I *never* get the title transferred. Have the seller give you a bill of sale that is signed, dated, with VIN number, sales price, and payment method/status and then have the seller sign the title too.
If you title it, you get the pleasure of paying for it every year. :pissed: Screw that. The gov't gets enough of my money as it is.
I have done this many times over and have never had issues re-selling bikes. Just so long as you have the title and a valid paper trail supporting the history of the machine you will be in good shape. Not to mentio that you will have a few more bucks in YOUR pocket to use for riding, parts, etc... :)