Lot's of Bitcoin ATMs keep popping in the developed countries such as US, Canada, Japan, Hong Kong etc. But I have been thinking why don't the owner's target countries without much economic stability? Like Venezuela (btw they just got their
first Bitcoin ATM). That would increase the adoption. Something like backpropagation. What do you think?
Unfortunately in Venezuela it would probably infringe the draconian foreign currency exchange control. Even if you obeyed the government "official" exchange rate, you would immediately go bankrupt. Example: The current official rate is 1000 VES for 1 USD, street price is 2500 VES for 1 USD. Very few people can get the official price (and its actually a lie, inside that system most people end paying closer to the street price anyway).
Also, even if you managed to trade at the street/localbitcoins exchange rate, the time you take to collect the fiat from the ATM and exchange it back for bitcoin (or anything else) it would be worth half or less (even if you emptied the box daily).
There have been banknote shortages in the past, and its probable that will repeat again, as those in power keep feeding inflation because they think they can command the market by force. And you'd also need an insanely large amount of bank notes for a few satoshis.
Perhaps you have not noticed but they are selling higher than buying at localbitcoins, that should give you a hint of the time it takes to complete the loop:
And if that occurs to an online exchange, just imagine having to physically keep and maintain the ATM, which would need to remain in private property and under surveillance. Venezuela is a country where regular Bank ATMs are vandalized if left unprotected (there are banks that keep them inside). I'm sure you will find a similar criminality problem in most poor countries, where this is ironically most needed...