Rarity wise, of course its unfair to you cx
However, demand wise, I'd say that is a heck of a deal! I've owned several Shima LT, and I've always paid a bit more than that, and traded off for way more. I've seen them traded off for September and even low Main list before, though that was an extreme... Anyways, they usually go for much more, so if you wanted one, then its a very good deal. If you'd be looking to trade it off, then I'd say you could easily get twice that ^-^
Get a second opinion though, because even though I've owned and traded off several, other people might have different experiences c;