Like I said in a previous thread, I think the fact that the S10 falls into a black hole as far as ADV bikes go was because it was priced for a market that probably wasn't there.
It was marketed as an alternative to a BMW's GS. I couldn't find an MSRP for a 2010 Super Ten, the year they were introduced, but the price of a 2012 was listed as $13,900. A 2012 BMW R1200GS was listed at $16,150. A $2250 difference isn't to be sneezed at, but when you break it down into a monthly bike payment, over a 48 month loan with a 3.95 percent interest rate and no down payment or trade in, there's a $50.00 difference in the monthly payment. Once you start comparing the difference in OEM components, though (things like suspension, brakes, etc), it begins to seem like you're getting a lot of value for that extra $50.00. Assuming you aren't getting a deep discount from a Yamaha dealer, it becomes kind of a tough sell for Yamaha at that price range to convince a buyer they shouldn't be going German. Yamaha is kind of stuck in a nether region: to be a real BMW killer, is either has to be cheaper but maintain the same level of quality the S10 already has, or else be more expensive and offer the sort of technical sophistication that would cause a potential BMW buyer to consider the alternative. That's a tough path to walk in a market that's been dominated by BMW since what, the late 1990's? If there was such a thing as a "BMW Killer", I'm inclined to think its design would more resemble a KTM 1290 Super Adventure; it offers beastly HP that surpassed the BMW, and KTM has the off-road credibility that attracts that segment of the ADV market.
There's really no comparison between a DL650 and a Super Tenere, and that doesn't detract at all from the excellence of the 650 as a motorcycle. I would gladly have kept the Suzuki if I'd had room for it. But I've ridden both on multi-day cross country tours, and I'd never go back to the Suzuki for that. It just doesn't suit me as well as the Yamaha, and the difference in component quality is distinct. I chose a Super Ten based on the fact that is was in my "paid in full" price range (especially with the discount I got from buying it out of state), the nationwide dealer presence, the bike's reputation for reliability, and it's potential as a trouble free touring platform. I have pretty much zero interest in its off road ability; talking about the off road capabilities of 600 pound plus bikes is like talking about who's the skinniest person on a "My 600 Pound Life" reunion show. Strip away all the "Adventure Bike" marketing BS, and it's a modern day UJM, and that's what I was looking for. Its girth doesn't bother me a bit; in fact, I love the way it looks from the front with the panniers and crash bar bags on it. Every time I look at it in the garage, it seems like it's yelling "just stop gawking at me, let's go to Utah!".
"No matter where you go, there you are."