I'm in the opposite position as you, my Esprit is paid off and the boxter has another year of payments. The boxster was paid off, but I bought the Esprit cash so I borowed a little against the Boxster.
The Esprit handles better than the boxster and is of course faster, but if you're planning to purchase one, you should be handy woth the wrench. Otherwise this car will be quite expensive to run. Bur working on it yourself is quite rewarding, after all you're basically working on a race car
Mine is actually Red, I'll post pics this weeked of the boxster and the Esprit.
Jerry