The cost is not just the purchase of the key. To work effectively at this, you would also have to get access to the a computer and the internet. Both of which a

The cost is not just the purchase of the key. To work effectively at this, you would also have to get access to the a computer and the internet. Both of which are not ubiquitous as, say, electricity and cost money. I understand that this is a 1st world situation, but even in the 1st world, access to a computer and the internet is always possible.