2012 is supposed to be the best year for the 998. Price would be a consideration.
I'd suggest that once they had the 'Heat Recall' work done, the
2013+ V-Twin Spyders were the TRUE pinnacle of the V-Twin Spyders. nojoke
The Heat recall work was only necessary because BRP didn't get the new 1330 motor ready in time to release that year, so they ended up stuffing the V-Twin motor back into a frame that'd been prepared/optimised for the wider & shorter 1330 & then wrapping it all back up in the smaller tupperware, messing up the air flow thru/under their skirts & so crippling all the associated underbody cooling; but once that recall work was done, as evidenced by the big scoops under the mirrors on the RT's & the changed side panels on the RS/ST Models, they had all the new frame & suspension mods the later 1330's got, plus the bigger/better Brembo Brakes & the 15" front wheels to go over them; so apart from the bigger/heavier tupperware & the slightly larger gas tank giving a slightly better touring range, the 2013+ V-Twin Spyders had all the best bits the 1330's could offer while they kept the revvier, more responsive V-Twin motors that made for a more exciting & sporty ride!

hyea:
And for most critical parts, the V-Twin engines and the 5 Speed gearbox were in use in other makes of machines too, Aprillia amongst them; and funnily enough, while parts for the BRP Unique brake & frame components on the 2008-2012 Spyders are becoming hard to get, if you're not wedded to going OEM, parts for the 2013+ V-Twin Spyders are still fairly readily available, and some tech's who'll work on those other makes of machines will even work on the 2013+ Spyders too, at least here in Oz!
But that 'shared platform for the motor/trans' thing leads on to one the other most significant mods you can make to them - the Aprillia's (& others) running the same engine & gearbox
DID NOT have the Rotax motor's power output choked down like all the Spyder's did & have regardless of the motor; so for a relatively small outlay, and no change to the maintenance schedule &/or reliability of the V-Twin, you can get the ECU Upgraded to unleash
juuust a little of, running right thru to
ALL of (& maybe even then some too!

hyea: ) the tried and tested somewhat higher potential in the Rotax 998 V-Twin motor's power output, well beyond the paltry 109/115 hp deemed 'safe' for the perceived 'not so capable' Spyder Ryding market envisaged by BRP & their legal/marketing teams et al!! :banghead:
So yeah, do watch out for the really low milage offerings in V-Twin powered Spyders out there; but certainly, I wouldn't knock back a good 2012 for the right price, only if you can find one that's been reasonably maintained and hasn't spent its life slowly dying thru lack of use somewhere,
I'd suggest you could do a whole lot worse than any of the 2013+ V-Twin Spyders once the heat recall work has been done - with one of them, you'll get the absolute best of the V-Twins teamed with all the good frame, handling, and braking stuff the later 1330's get - only with the V-Twin & the lighter tupperware, you've still got the revvier & more exciting engine in a lighter & more responsive package!

hyea:
Just Sayin' :thumbup: