You need to bear in mind that snapshots are almost a "temporary" backup. I wouldn't bother taking them in addition to normal backups unless there was likely to be a requirement to roll back to that point in time or I had to compare data changes over time for some reason. Perhaps day old reporting if I had limited resources and sql licences.

If the source database becomes corrupt you are unlikely to be able to recover it from the snapshot as the snapshot consists of both the source database and the modified pages in the snapshots sparse files.

You cannot backup a snapshot so if you need to recover the source db from backup, you will loose the snapshots.