I've found that for my little 16" Delta, its way cheaper to buy blades rather than keep stock on hand and weld or solder them up. Last batch of blades I bought were 1/4", 24 tooth and 8 blades ran me 110$ delivered. Called on Thursday afternoon and had them Tuesday morning. I try to keep several of the blades that I typically use on had at all times, so I'm rarely shut down for being out of a particular blade.
It may be different cost wise when I get the big 14x16 saw back going, but that will be a while still.