Yeah I understand your thinking, Joe! Sometimes you just gotta give up one toy to keep another, especially when you dont have the time to give her the attention she deserves!
I haven't even been able to practice my riding because of 1.) time 2.) no place for bike in ghetto apt complex 3.) unwilling to ride among ghetto tourist/resort area drivers!!! It just doesnt seem right to leave 2 beautiful bikes cooped up 1.5 hours away in a garage
Just dont forget that selling your bike now doesnt mean giving up riding, it means you can buy another bike later when your finances/situation is more favorable for more toys!
As for $4500, you could try, but I'd say expect more like $3900. Our 01 Candy Blue Kawi with 7K miles has a trade in value of $4745 (add a little for less miles) and we're lookin' at MAYBE $4900 tops.
For your bike, trade in is $3755, and retail is $5445 (with average miles). But it seems that when shopping with private owners, people ALWAYS try to get the trade in value

Just ask for a couple hundred more than what you owe, and settle for an even break!
Anyways, good luck, and keep us posted!