Simply make some of the purchases one time only yet you can chose what you want to equip. Best examples would be for Artemis and DHS, once you purchased the upgrade you would have the option to put either DHS or SHS or both on your mech which would allow for better optimization of crits and weight when your running low on either. Artemis would work in a similar fashion, once the upgrade is purchased you would have the option to buy either Artemis equipped launchers or standard launchers, which would make switching more cost effective and less annoying, keeping some of those essential funds in your bank .
Structure and armor i think should still be a one time purchase with maybe a smaller fee for switching them out, like 10-20k to swap, first purchase remaining the same. Any ides or comments are encouraged, i think most of us out there dislike the current upgrade system and would like to see it improved.
Edited by Chaotic Knight, 26 February 2013 - 01:31 PM.