To clarify, it was from a single vendor who sold a product that was designed around use with particular models of raspi, not bulk individual boards (even though

To clarify, it was from a single vendor who sold a product that was designed around use with particular models of raspi, not bulk individual boards (even though that's how they shipped). This was also two years ago, although we've been able to get more from them since, so I'd recommend calling companies that have any kits or products that include pis and asking them for info on ordering. If you have a procurement office or purchaser, they can help. You'll have to forgive me for not wanting to threaten our golden goose just yet :)