For me, there's always some maintenance item to buy, but as far as big ticket items, that pretty much has slowed down somewhat. Though I just bought a new lower end bike that I liked for commuting, but I already had a large amount of accessories/components to transfer from another bike keeping the costs down considerably. As in another post, I keep my older bikes, which are still in good enough shape for light duty use, in order for others to ride when out on family/group rides.

Whenever my cycling expenses go into the doldrums, I just take that extra money to make household improvements, which I can quickly shift back when my cycling expenses pick back up.