Perpetual.... where's this store of yours :-) I'm setting up multiple tanks at the moment and could always use a new source.
Tammy, get your husband slowly involved in the hobby. If he sees something he likes for the tank that is appropriate... even if you don't particularily like it..... get it for him. Let him pick a spot in the tank... compliment him on his selection of placement..... comment a couple of weeks later about how well the coral is doing in the spot he chose.
Get really excited when you buy something....... share that excitment with him..... ummm.... that night. Repeat it enough and he'll recognize the cause and effect going on (subconciously or otherwise) and soon will get excited himself with new tank additons and what not....
He'll grow to love it too and than all your dreams will come true!