A question to all electric/upright doublers...

I'm curious: What is the most fun, or most satisfying thing about playing both acoustic and electric bass? What are the major problems? Fingering and technique issues? Amplification problems? Do you double on gigs? If so, what kind of equipment setup do you use to easily switch between both instruments?

I'm doing a series of articles for Bass Player on this topic. If anyone has thoughts, feel free to chime in . . . I could use your feedback.