Yes Robin has it right... at this point my main guy has 52m SP and 5m sitting banked that i can spend on whatever that i got back from learning skills.. so not worried about the skill investment.

If its 15 or 20 minutes and it will give me rocks that will last more than 1.5 cycles from an exhumer, sounds like it might be worthwhile. If its a few hours then definitely not.

Hrm.