DCI Stemless Wine Glass, Extra Large, 750ml

We bought these just for fun, two to be exact. They came from different amazon sellers (both shipped with prime) but there is a significant weight difference between the two glasses. They arrived in totally different shipping materials, but both arrived OK. They came in the same packaging. It will be interesting to see if they hold up differently since one of them feels pretty light. They actually do hold a whole bottle of wine and are a great deal for the price. ***Update Oct 22, 2013*** So, the lighter weight glass developed a crack yesterday. It didn't break, just developed a crack right in the side of the globe of the glass. I think the glass may have been too "light weight" for the weight of all that liquid. A full bottle of wine (or the equivalent volume of liquid) weighs quite a bit and I think the pressure got to it. Perhaps we bumped it against something and helped it along, but I have never had a wine glass do that before. My quality expectations were low for this item, as obviously this is a cheap wine glass, so consider it a novelty that probably won't stand up to everyday use! Oh well, we still have one of them!