Thank you all for your comments and insights, yes there is a lot information on Google, etc , much of it is old though. I was a relatively active trader on LBC and before i started on LBC it was difficult to get a handle on market size and liquidity, even with all my prior research.

I seem to be facing the same issue here, I can't judge the size of the market, its even more complicated because the market depends entirely on geographical location. Am thinking of locating in trendy, up and coming areas of town, but am confused...young student areas or yuppie newly gentrified areas? or largely immigrant ethnically mixed areas?...... once again any suggestions?

It would be great to hear from someone who actually uses BTC ATM's or anyone in the business