+1. The most telling portion of your original post is "having not really ridden the CAAD at all". To me a bikes true value is how much you use it. You have a bike sitting there just depreciating. If you keep it it sounds to me that you will not ride it and money will continiue to leak from it. I'd pull the pedals and saddle off and sell it for what you can get. Take the money and get a true grocery getter. The suggestion for a classic bike above is a good one. Something like my '88 Fuji would be perfect and can probably be had in the $200 range. Just slap the saddle and speedplays on whatever bike you get so that money is not lost and you're almost guaranteed to be seriously upgrading that portion of the bike. You can pocket the extra money and at the end of the day you'll still end up with your grocery getter and it will be like you rented the CAAD (albeit at a pretty steep price) since the time you bought it.