Carrying it short distances is no big deal, but not ideal. They range from 15 pounds all the way up to 40 pounds depending on battery size, wheel size, and materials quality. Most people ride the smaller sizes; beginner units tend to be lighter, as most riders upgrade to bigger wheel sizes for a smoother ride or bigger batteries for longer range.

The lowest priced one I've found that has a reasonably safe battery size is about 400 dollars. I don't want to spam it up here so PM me if you want a link

I ride one of those self balancing one-wheel things with no seat. I didn't know what to call it, so I looked on Wikipedia and they call it a micro unicycle.

Here's the one I'm riding right now - there's a video of a pretty girl riding it hahaha

I'm upgrading to this one now; ordered it a few days ago! It's faster, better safety features, etc.

I used to skateboard, but the roads are so bumpy and I would arrive all sweaty, so this is awesome. The big wheel makes the ride real smooth, and it charges itself going down hill because of regenerative braking, so it's easy to control my speed. I don't have to lock it up like my electric bike, and I'm barely using the car anymore!