having tenants change keyless locks?

[Elizabeth Scala]

We would like to change our doors to keyless locks, to avoid locksmith/rekeying/lost keys in the future.  We were looking at the ones you program remotely ($300+) so we'd have the option of full control from anywhere.  Then I had the thought that if we just went with simple keypads (programmed only on site, we keep the backup physical key), we could require/help each tenant set their own code at move in.  

That way we get our remote access/no rekeying, but without the high cost of remote programmable locks.  

Thoughts?