You can also pay slightly more for the Crystal Cabin, which has a glass floor. There is a separate, shorter line for that, although if it's as crowded as showin in the picture above, I'm guessing it's going to take you quite a while to get to the ticket window in the first place.
Besides the line-jumping (subject to waiting for a Crystal Cabin to come around), I think it was worth the modest price supplement, at least one way. Unless you're afraid of heights. In which case, skip the cable car altogether!