Something else I wouldn't mind getting

Well, it was only a matter of time. Instead of spending any energy swimming while scuba diving, now there is a portable submersible that one could ride while diving. While there have been scooters divers have used for a long time, they generally look like a short torpedo that pulls the diver along.

Here the diver sits on a seat, almost like a jet ski type, but it goes underwater.

While this would be a lot of fun, the two problems I would see in using this are:
1. While riding this type of scooter, it would be hard to get close to a reef or fish
2. It would be easy to get carried away and thus change depth too rapidly, dropping down 10 to 20 feet quickly is not a problem, going back up could be.

Still this could be a lot of fun, and only US$13k.