Depends on how much the price increases... I currently pay 29.99 a month for a 1.5mbps ADSL line, and 4.99 a month for my gprs line.
With data files getting larger and larger, I wouldn't mind faster access... if its around 79.99 or so, i'd probibly go for it... as I was looking into getting a new vaio notebook, the type with built in edge and the service runs 79.99, in which case if I could get a much faster line for the house i'd just continue using the slower gprs when i'm away.
Now the thing is, faster access only really helps if the servers (or other people, in the case of bit torrent or other p2p stuff) have fast lines as well... So I probibly wouldn't be the first person in line to get a faster line.