Mine cost about $300. The actual uke was about $150, plus another $100 to get the pickup installed, and about another $50 for the hardcase, but I'd let it go for $100.
You can get varying quality baritone ukes starting from as little as $20 bucks. The good thing about them is the chords are the same as a 6 string, but minus the two thickest strings, so there is no having to remember different chords structures, unlike sopranos and concert ukes. The strings are nylon and are spaced like a nylon (nice and wide).
They make really cool looking ukes nowadays as well. Les Paul look-alikes and other electrics