Absolutely. For smaller/medium sites where you want some accountability but real time isn't required there are solutions out there like CyberLock - to get historical information you wait for keys to either check in as they charge or you can run around and touch the locks with a key and the system will do a status update.

It's not as convenient as wired/connected systems, but it's also a fraction of the price too. You can pick what's more important - real time or price :)