Couldn't resist picking up a pair of the Dogfishhead branded glasses, and they arrived today.
As has been noted, they are quite thin walled. And very light - at 6.3 ounces, far lighter than my Sam Adams glasses at 10.9 ounces. My wife's first reaction was "Well they're going to break". (As it was Valentine's Day I didn't retort with "Not if you don't use them!"

)
I noted earlier in this thread that the design wasn't all that visually pleasing to me, and I still feel the same way - though they are growing on me. There's definitely a discordance - the busily rippled stem quickly transitions to the long graceful curve of the bowl, and to me they just don't seem to get along.
That said, they are very comfortable in the hand and equally secure - little chance of having one slip through your fingers. You can easily hold the glass with just thumb and forefinger, which helps keep the beer cooler longer than grasping it with the full hand.
Anyway, stacked up against my SA glasses, these come in a solid second. The SA glasses have a far more refined and coherent - dare I say professionally designed and produced - look to them, and they are much sturdier (I have a dozen of them and we've yet to have one break).
But, as I said, the DFH glasses are kinda growing on me, so they'll see their share of the action - as long as they remain intact.
However, considering half of my SA glasses were "free" and the others cost $8 on top of enjoyable trips to Jamaica Plain, it's unlikely I'll add any more of these $14 models to the glass collection...
Cheers!