I went the Amazon bulk bundle route. They are all "no name" / some made up Chinese company, so they surely won't hold up as well as name brands. But for the price of one name brand blade you can get a whole assortment.
I haven't used these blades that much yet so I can't give a real great answer on their strength. But as others have said, you need different teeth and different material blades for different jobs. I'd rather have 50 different blades on hand of lower quality, versus one expensive blade I'm expecting to do everything. It'll no doubt stink at one job, or burn the teeth off it, and you wrecked an expensive blade on a job it wasn't meant for.
If I really find one particular type of blade I use a lot I might invest in some better blades, but they're all consumables, so I have a hard time spending a lot on something like that, personally.
