How much is my guitar worth?

-Its a 2001 Mahogany Baby Taylor made in Cajon, California. Model number 301-M-GBThe rule of thumb for used gear is that it's worth about half of its original or current selling price, whichever is lower. That now sells for $299 everywhere so it's worth $150 used.
If you've kept it in good condition, probably about the same as you paid for it.
I'd say around $300.