I bought an Eleuke recently, and I really like it. It will be very handy this summer, when I suddenly get lots of neighbors again. It's been fun to plug in the iPod and headphones, and play along. It's been compared to "ukulele karaoke", and that's not too far off.
When I began looking at them, someone said the Eleukes were slightly larger than their acoustic counterparts. I had wanted a tenor, but decided to get a concert based on that. I would like to note that the bodies of Eleukes are actually very small. The concert RH is the size of a Makala Dolphin soprano. Not what I expected, but still great.
Mim was wonderful. She suggested a slightly different color (metallic black instead of plain black, as plain has a tendency to scuff). I could still smell the lemony fret oil she used when setting up my uke, and she even partially filled out the warranty card! That's some good service!
I think you should go for it. It's not particularly expensive, and is a lot of fun.