depends on how much the upgrade is...i know acid music sells for around a hundred bucks .. i had acid music , but i now have acid pro... i didnt bother with the upgrade.. i bought acid pro outright and sold acid music to friend.. so it cost me as much as the upgrade would have , and i dunno about you , but im not too into upgrades.. i like having everything on one cd , because god forbid if my hard drive fails , i wont have to be concerned as much...
- eddie -