Hi Max, The blades I get for the 18 inch Victas cost me about $5.50 a pair and then the prices for the other mowers creap up slowly depending on the size and what mowers they fit up to the 24's which cost me about $13 a pair. These are the most expensive blades I ever buy. Of course I have to buy them in bulk and I would have hundreds of dollars sitting here in blades but I need them because I never know what the next mower coming through the door will need. I have said for a long time that it is not an industry I would like to try and make a living from.