John,
No one needs to sell the C24R. It sells it's self! What more can you ask for in a 4 place retract? Big cabin, three doors, good economy, good range, great visibility, nice panel, excellent handling, decent load and not as slow as most people think. The overall economics are better than just about any other 200 hp retract out there. None of my Mooney friends will pass up flying my Sierra. It isn't as fast as a Mooney, but it isn't as slow as an Arrow or Commander 112. My Sierra is right up there at cruise with the Cardinal RG (your speed may vary). But even with the average 130-135 knot cruise speed, the Sierra beats most in the terms of overall comfort and flying experience. I recently spent over 5 hours in my Sierra with a 19,000 hr ex-airline pilot and Mooney owner. He was all smiles flying my Sierra. He was also surprised at the speed and economy.
The question should not be; "Should buy a C24R?", it should be, "WHEN should I buy a C24R?".