I really don't budget but I usually only buy when our local Fabricland has its 1/2 price sales. Obviously you have to buy some things when you need them but any large purchases are only done when they have their sales. I look at it this way, if it brings you satisfaction & enjoyment & you love the hobby - as they say in the TV commercials - the cost is priceless. We all have to be financially responsible so keeping that in mind, as long as you are not going in to debt over your hobby - just enjoy.