[foggy123]

To me it would come down to the price of the S2R and components of the S4RS (no S4R for me). The S4RS will give you major wood everytime you ride it (it's a beast when Termis are on it). The S2r will always just be a S2r (which is quite good but not near the bike the S4RS). If you can afford the the S4RS get it, if no get the S2r and eventually some wheels.

some more info. http://www.ducatimonster.org/smf/index.php/topic,48268.0.html