@Gina @ecosteader How are you 'locked in'? Can't you just use the Data Export function to pull everything out?
We've been using Salesforce for about 2 years now, but as an NGO their insane data storage prices are hurting quite badly, so I'm not ruling anything out in the future... but what are the alternatives? MS Dynamics? MS are not exactly bastions of ethical behaviour either. Then there's CiviCRM but that's pretty barebones AFAIK...