Butterfly labs are like the gold mining tools shops during the Gold rush in Australia long ago.
everyone thought "what could be more profitable than GOLD"....
and yes a lot of people found Gold....and got rich....but many many more DIDN'T find gold...or found so little that it was not worth their international trip at all.
However....the "tool" sellers...sold to EVERYONE....the winners and the loosers...they made "guaranteed" money.....no risk of whether they will find gold or not...
did they make less money then some of the people who found large amounts of gold? perhaps....
but did they make money then MOST of the gold finders? YES!!!
and this is exactly what is happening with butterfly labs....hell if I had a chance I would much rather be the owner of butterfly labs then have a big mining operation..they simply cannot loose.....especially with their "pre-sales"
their profits are not dependant on the latest difficulty level...
nor are they dependant on the latest exchange rates...
nor do they have to mine first and get paid later.....they are getting paid in advance! and they have certainty...they know exactly how much they are earning before selling or even producing the item...
A sale in hand is worth 2 bitcoins in the mine?
(for our "English as a second language" folks...that was a modification of "a bird in hand is worth 2 in the bush")
wishing you guys, all the success in the world! (regardless of with or without bitcoin)