My customer base is mostly residential. Why should I even consider high security systems?
What you need is one of the most important parts of high security locks: patented key control! Without patented key control, keys can be easily duplicated compromising high security. Pay attention to the patent expiration date, as that can signal whether key blanks are going to be available. Depending on how popular the key system is, that can determine if any aftermarket blank manufacturer will make blanks available.