Corleone
Fish Herder
Look around book stores for species books, I have a nice one that's limited to smallish community species that would be particularly nice, but I also have some 500 page behemoths. If you get him involved in picking out future fish, he might find the wait more bearable. You can also make weekly or every other week trips to the LFS to look at fish and decorations. Depending on his personality, this might just make matters worse, so I leave that to your discretion, but I do recommend weekly trips to the LFS anyway. If you become a fixture and seem knowledgeable, you can sometimes get better help out of the staff. If you can find out what day they get new stock in, hit them in the early afternoon those days, you'd be amazed how quickly their stock dwindles in the first day as people pick up special orders or eager collectors clean out any less common fish.