Even if you only have 2-3 gigs a month - if not music, what ARE you moving on that connection?
Just try D/Ling a few youtubeszz every day.
Or tethering -- I have a relative who's desperately holding on to a 8-yr old phone 'cause it (the phone contract) is grandfathered into a true unlimited plan. She runs around 8-12 Gb/month thru a combo of relaxation web browsing and thesis delvelopment (linked into a Univ. cluster computer)