Given the volatility of the currency and the insecurity (either real or perceived) of exchanges like MtGox, I'd stay away from any BTC auction not purely for ex

Given the volatility of the currency and the insecurity (either real or perceived) of exchanges like MtGox, I'd stay away from any BTC auction not purely for experimental purposes. An auction by nature selects the bidder with greatest desire for the item as he/she will offer the highest bid. Limiting to BTC will likely decrease your profit potential.