Got into a discussion with my mom about how the school she works at has zero backups at all. It is a small private elementary school on a tight budget. What's the least expensive Synology NAS that we "should" buy? Primary use would be for backup of about 7-10 computers. There would probably be very little need for off-LAN access at this point. Would basically be looking to backup teacher/staff computers once a day whenever they are in range of the school's LAN. I know what the value-series NAS are, but I don't know if they would be too cheap to backup potentially sensitive student and school info? What backup package would you recommend for such an environment?