While in most cases the more brick, the better, I think the canvas approach for space theme makes sense. I think we would incorporate some tan baseplates for effect. The look we were thinking of compares to old Lego catalogs. Ideally we do not want to overcrowd the builds but also want to create an environment. Canvas allows us to cover area at a reasonable cost and amount of time. To brick build an entire moon (or alien) landscape isn’t exactly feasible given there are only a few people (so far) doing space MOCs.
Im not saying it wouldn’t be cool if we had a brick-built environment. It would just be a massive undertaking. Is it possible to get the LUG to support setting aside a whole bunch of take baseplates and tan brick and tiles for craters? Is it worth the time & brick to do that given that space is not always in the LUG’s displays.
Anyway those are my thoughts.