Had a look at that calculator. thanks.
It calculates a 9% reduction per week making the ROI take over 3000 days? Is this reduction based on increasing difficulty? How accurate is that-I mean it doesn't seem like the difficulty is increasing at that rate?

Thanks guys.
Did a SEPA transfer so still waiting on that to go through.
One thing I am concerned about is whether they have 2 factor authentication specifically on the withdrawal section? Maybe they have and I cant see it yet due to having no funds registered. If they haven't it might be an idea for users to contact their support and request this be implemented-similiar to MtGox (who are doing it properly (as far as i can tell).
I contacted them already and they have already replied saying they will look into it.

Just getting community feedback on bitstamp- speed of transactions,speed of receiving bitcoins and any other useful advice. I'm in Ireland and thinking of buying my first bitcoin to participate in a group buy for mining hardware.

Hello all,
Been reading through a lot of the posts checking out the different group buys for mining hardware ( not realising I couldnt ask questions in the threads I was reading)- so here's a few newbie questions...
There is a group buy (by member canaryinthemine) where he's selling the asic miner USB devices for around 1 BTC. I was thinking of buying 10 . Am I correct that these are 333mh/s each- so 10 would be 3330 mh/s approx.   Can someone correct me if Im not understanding correctly- but I put 3330 into a mining calculator at current difficulty and it came out around 7 dollars per  day basically taking over 150 days to make the money back on the hardware ( assuming no change in difficulty-some chance!). can someone tell me why anyone is buying them-at least in bulk- I can understand 1 or 2 to play around?
Also- what type of hardware setup would be required to run lets say 10 of them stacked together? are there special types of USB hubs for them. Dont know much about the raspberry pi-can that run 10 of them? Any info appreciated.