Really curious how well the salesforce integration works. Heroku has a product that does this (Heroku Connect), but it doesn't work well with large tables and you have to pay them an obscene amount of money to even properly test it (which might have something to do with them being owned by Salesforce).
So many companies with tons of data trapped in Salesforce's expensive walled garden and no way to get it out. Dumping it to SQL is the first step to freedom.