I'm trying to launch a new site with an MSSQL database of around 20GB. Unfortunately it seems that MSSQL Express is limited to 4GB so this is not possible.

I understand that my option is to upgrade to something like the Enterprise version, however the associated cost of this is significant (around 150 - $200 / a month) extra on top of my current bill.

Do I have any other, less expensive options, or do I simply need to bite the bullet?