I'd by the lot at 220 each. If any of them are sapphires I want nothing to do with them 6 months of mining and those fans are almost certainly almost dead. You're lucky if they last 3 months.
Bullshit. I have had Saphire Vaper-x 7950's running for 8 months and the fans are still kickin ass as I type this. I have 12 of them and not a single one has messed up. On the other hand I had a MSI that went to shit.