So let me get this straight, if I've never bought a Block Erupter USB before, I can't get them for 0.15BTC? If I want to get some, I'm looking at closer to 0.5BTC each?

yes.

this is the no promo thread

https://bitcointalk.org/index.php?topic=264633.msg2831058#msg2831058here is the pricing summary from above link

Pricing:

If you order 1-9 units the price is .55 per device, shipping included.

If you order 10-14 the price is .50 per device, includes domestic shipping. International is 1.25 additional btc

If you order 15-49 the price is .48 per device, includes domestic shipping. International is 1.25 additional btc

If you order 50-99 units the price is .45 per unit, includes domestic shipping. International requires a quote as 1.25 won't be enough for FedEx due to weight.

If you order 100+ units, the price is .43 per unit, domestic shipping included. International requires a quote as 1.25 won't be enough for FedEx due to weight.

If you order 500+ units, the price is .42 per unit, domestic shipping included. International requires a quote as 1.25 won't be enough for FedEx due to weight.

If you order 750+ units, the price is .41 per unit, domestic shipping included. International requires a quote as 1.25 won't be enough for FedEx due to weight.

For orders 1000+ units, contact me for pricing, be prepared to prove that you control a wallet that has a substantial amount of bitcoins in it.

Total for your order is C = .55 * N (where N is 1-9)

Total for your order is C = .50 * N (where N is 10-14)

Total for your order is C = .48 * N (where N is 15-49)

Total for your order is C = .45 * N (where N is 50-99)

Total for your order is C = .43 * N (where N is 100-499)

Total for your order is C = .42 * N (where N is 500-749)

Total for your order is C = .42 * N (where N is 750-999)

contact for orders of 1000+