[/quote]

In case you have noticed my initial investment was under $1000. Investment after that was me paying for electricity out of my day job so the more rare bitcoin could be kept to purchase more miners. Bitmain also is a bit slow on production, doubtless because they are using most of their product for themselves on their farm. You have to check Bitmain's website often to get a chance to purchase a S9.

Hope this info was helpful in some way.

dzimmerm
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Thanks, that is basically my strategy as well.  I live in Maine so the electricity is actually cheap (compared to other parts of the country, not as cheap as WA though) and eventually we will get into cold weather which should help keep the miners happy.  I hope to expand the number of machines with proceeds from the S7, and the only reasonable S9 prices seem to be direct from Bitmain but then you're waiting 10-12 weeks for the next batch to come out.  I refuse to spend a $1000 premium just to order from someone on Ebay that is waiting themselves for a pre-ordered machine they don't even have in their hands yet!

We have a hosting company in ME that quoted me almost $450/mo for 2 miners.  I laughed.  I can continue to foot the home electric bill but the noise is more than I expected... the wife keeps asking me who left the vacuum running all day when we get home from work at night!

This is how I picture my "miner" at home working all day and night while I am at the office.  I too am trying to pad the nest for retirement!

https://vignette2.wikia.nocookie.net/muppet/images/3/33/Doozers-observed.jpg/revision/latest?cb=20090606212323