From my experience running a club, I've found that Lammet blades (e.g., Fleche, Dinamo, etc.) give about as good a cost/durability ratio as you'll find for keeping a club stocked with blades. They have an average- to somewhat above-average lifespan at a below average price.
What my college club has been doing for the past couple seasons is ordering direct from uhlmann. This has allowed us to get much more equipment at a lower price. It takes a while for things to get here, but for something like blades where you want to have a bunch on hand anyway it makes a lot more sense. The most recent blades we got from them are very nice. They are the low end blade, but have a frosted coating which will inhibit rust. A good thing since our armory is a tad damp.
Linear Mode
