I double on upright and electric. They are very different animals. the upright is physically demanding and much much harder to play in general, unless maybe you are just thumping on one and five. But it's so frickin' amazing to play. The feel, the sound, the attack of the notes, the freedom from plugging in.... I didn't really understand "swing" until I played the upright, and then all of a sudden a bunch of stuff made sense. There's a totally fantastic quality you get with an upright that you really can't get with an electric bass--the thunk on the front of the note followed by the long full decay: the tension and release inherent on that, the way you have an urgent front end and a relaxed back end, just makes stuff swing hard. I changed my whole approach to electric bas after playing upright and it made me a much much better player, especially on stuff that isn't obviously "swing but whre, as Keith richards says, you need the roll as well as the rock. It also helped me figure out sonic stuff, on electric bass, like about NOT sounding like a guitar
If you don't like it, fine, maybe it's not for you. electric bass is a great instrument in its own right and you can do things with it you can't do with the upright. But it's not played the same way--you REALLY need to get your left hand position together in a completely different way, and you need the right hand to pull through with authority--nothing like the slab.
Also playing it with a bow--man, there is nothing like the power and range you get with that, from a whisper to a roar, LOOOOOONg held notes that you can swell or diminish....