Pimple maps have been supplied free of charge by House as a bloody huge bonus to all treasure seekers. Keeping a pimple map is hard yakka and eye-crossingly difficult to do accurately (says I from last comp experience).
If more people clicked "thank you" when Houses map updates appear, he may be more willing to continue his efforts, before descending in to drunkedness like half the rest of us.
Hint: Eureka Moments thinks beach detecting is crap!