From my own experience, I can go quite spending-crazy when I get into one of my crafting moods! Depending on what it is I'm making, my spending can reach up to the hundreds! But this will usually last me a good few months.
How much do you spend on your crafts?
Do you set yourself a monthly budget?
I have to say I like to buy my craft things on ebay.
In the shops they are way too expensive, and for me that is impossible to spend what I don't have.
I can buy in bulk on ebay, and it takes maybe 2 weeks to get the items....I can wait.
Plus: most from China send free to you! so ''winning''. :)
I would spend maybe $20 a month.