Just another point to consider:
The magnetic stripe will still be there for a long time, however, if people want to pay with their phone in the future they can't with an old system without NFC.
I am in Australia and I am going through this at the moment with my reader. My current bank is not accepting my reader anymore and cut me off (mag stripe). I had to change the bank. I am looking for a compliant system now. I can't buy anything from the US because it's either outdated or hugely EXPENSIVE. So, it's probably the worst timing to buy new equipment but I'd rather see if I can find a compliant system than throwing money at outdated readers.