Yes it is true, unless you purchase their "unlimited enterprise" option at $175 per user per month(!), which will allow up to 120M per user. Other vendors are more or less restrictive. For example EnterpriseWizard allows up to 100M per user with their standard package, priced at $45 per user per month. Incidentally, the reason for the limitation is probably not the size of the disk drives, the SaaS vendors are trying to control IP connectivity costs. If you go with an in-house, purchased system, there are no such limitations.
