Yes it doesn't really make sense to spent 9 BTC on 1.4 TH.
When I can get 180GH antminers and underclock them to 140GH at 166Watts.
10 of em gets me about 4.1 BTC, under half the price.
as you already know i have
[WTS] HashFast >400GHs Bitcoins Mining H/w, in-hand in Australia -
https://bitcointalk.org/index.php?topic=610629.0apologies for the cheeky plug
but I also have some SP10 currently held up in customs this weekend. Should have them in-hand next week. Will be looking for 9btc and above for each ~1.4THs (1250W) unit. i know, steep..
Cheers,
QG