Other companies that build shocks for the 2012 V-Strom are Progressive Suspension (465 Series) and the pricey but great Ohlins. Works Performance may also but I'm not certain. I know there are others but I have not had experience with them.
I've used shocks from all three of these companies on motorcycles other than my V-Strom and have been happy with all of them as they all significantly improved the handling of those machines over stock. However, for me at this time the stock shock on the V-Strom is adequate - I think it's quite an excellent shock for a stock one and I don't believe the benefit of an aftermarket shock is worth it. That is a highly variable opinion depending on a riders riding style, perspectives, etc., however.
I've had a particularly good experience with a Progressive shock on a 2004 Klr 650, having about 28,000 miles on the shock, a lot of those miles being very rough off-pavement ones, and have had no problems whatsoever with it. Other than softening up a little over the years, easily compensated for by dialing in a bit more preload, it functions as good as when new. And it is rebuildable if ever needed.
My only point is that there are other shock companies than Elka, they also make good products, and are worth investigating for your V-Strom IMHO.