'offered' them?
I suspect most of us were in a position to buy or mine at some point. With a bit of effort anyone around could have mined 100's. I thought it was just a fad so never got involved.
There you go.
Mining for small timers was always more expensive than buying the coins from the market. I still remember the case in 2012 and early 2013, when the coins were available for less than $10 from the exchanges. At the same time, the cost of mining rigs (BFL, Bitmain.etc) was insanely expensive, and they had a positive ROI only after 5-6 years.