As far as I'm aware, Lanikai's LU-21TE is the cheapest electric tenor ukulele around. It's certainly a good choice for anyone looking to gig with a ukulele (it's used by Beirut's Zach Condon for gigging).
Robin Davies plays the song Waltzing Maldita using Lanikai LU-21TE Ukulele.
On eBay UK
On Musician's Friend
Lanikai LU-21TE - $139.00
Construction: Nato (laminated) top, sides, and back
Tuners: Chrome Die-Cast