You don't say much about how much you'll be riding. I have a 2012 RSS Se5. (Bought new) Currently I have just over 33K smiles!! I had replaced the original rear at 9K miles, then switched to a Kumho tire. Replaced the rear tire again at 25.5k miles. I replaced the front tires at the same time I did the rear. I could have easily gone another 5K miles on the front tires, but I did not want to interrupt my riding schedule because this is my primary vehicle with my truck as my back up. I've done 11 oil changes (all full synthetic oil), complete coolant flush, complete brake fluid flush, 2 air filters, on my third set of plugs, changed plug wires to baha Ron's, 2 fuel filters, replaced 2 headlights, replaced all rear bearings at 25.5K, original exhaust crapped out at 19K (replaced with a Hindle) and my only electrical problem encountered was a faulty ignition coil.
Bottom line for me has been just over $900.00 a season while riding 12-14K a season. That's me doing almost everything but tires, laser alignment, coolant and brake flush. Compared to my truck, it's only about $400.00 a year cheaper than my truck. I put 20-25K miles on my truck each year, but if you compare them mileage to mileage (not including gas) the truck is cheaper!! I try and tell myself it's not a toy, I just think of it as my 100+ mile a day wind therapy session, which is definitely cheaper than any shrink!!! It's all in what perspective that your looking at it:roflblack: