Sage has recently announced that after 9/28/2012, all purchases of upgrades, new modules, and new lanpaks for Sage Pro ERP must be added to a system that is current on maintenance. This is not as bad as it seems, if you are more than 2 years behind on maintenance (which is not uncommon for heavily modified Sage Pro systems), you will need to buy 2 years of back maintenance and one year ahead. This works out to 54% of the new price. So, for an upgrade to the current version, that's just a bit more expensive than the long standing 50% of the new price that upgrades have cost up until now. But if you just wish to add one lanpak to an old out of maintenance system and not upgrade, you have to pay as much as if you were going to upgrade everything rather than just pay a penalty. In the worst case, you could pay the upgrade price just to add a single user.