The SUI Generis
 

A friend of mine sent this link for a new seated Segway option. Interesting features: gliding seat with center, offset, or leg steering options. Seems like an affordable AddSeat with two models The Buddy @ 3800 E and The Fun @ 2450 E and free shipping worldwide. Videos on their website.

http://suigenerisseat.com/the-sui-generis-seat/

It's VERY interesting. I think the Fun seat is crazy, but the Buddy seat looks amazing. I don't think the steering column pops off, and it should. I can't tell how the height can be adjusted either.
But I like it. I was a little surprised at the Segfree price in the end, I thought it was goinfpg to come in less expensive. This Sui Generis seems like the right compromise to get the costs down. I won't be in a position to purchase one immediately, but I hope to shortly.
Paul