^^But if you have grown out of that starting phase to try to play every song u hear on ur guitar, then get a bass. I wud luv to have a bass, but damn that money! If ur still in that phase, then go for acoustic. Whichever u choose, take ur time. Ignore the shopkeeper's glares, and at least drop him 3 visits 1 hr each before buying anything. If u want diversity in ur musical range, go for bass, and a bass amp. But if u wanna stick to bedroom practice, get an acoustic. Make up ur mind.
I will go for acoustic guitar.. but will get in between 5-10k., and use remaining for something else. I don't want bass, bcoz I am not in a band and don't have people to rehearse with. I assumed I can't enjoy playing bass alone (even karoke type), so opted for the acoustic. If i am already in a band or enough people to jam, and I already had an electric guitar - I would have gone for bass.