Yes, I noted that. But, as I said above, I've not had the best experience with that kind of seal. The failure rate for me was lower once that kind of seal was introduced but once I went to sealed cartridge BBs, the failure rate dropped to zero...as in I have never experienced a failed cartridge bottom bracket of any kind. In roughly 5 years of Saturday volunteering at my local bike co-op, I've seen only a very few failed cartridge bottom brackets. On the other hand, I've see several pitted spindles per month with loose bearing BBs.

I'm the shop lead at my local co-op nearly every Saturday...our busiest day. We have "Fix your bike" hours for 6 hours each Saturday with 6 stands. Time on the stands runs, roughly, 45 minutes so I see from 30 to 50 bikes per weekend of every conceivable age and equipment level. About 20% have loose bearings and most of those are older bikes like OrangeSoma's. The other 80% are sealed units.

Now not all of those 30 to 50 bikes have bottom bracket problems...the most common problem is shifting and is usually because some yahoo decided that the limit screws would "fix" the shifting problem. But if they do, about 90% of the bottom bracket problems are related to loose bearings. Of the remaining 10%, the number one problem is a loose cartridge that is easily fixed by simply tightening the BB.

If I were king of the world, I do two things to make bicycling "better". First, I'd adjust all derailers so that they worked properly than grind off the tops of the limit screws. But second, I'd replace all the loose bearings with cartridges...those two things would solve about 80% of all mechanical problems on bicycles and people would spend more time riding and less time fiddling.