We have hardware up and running with databases all setup and configured at out DR site. In the event of a disaster we'd recover the dbs from our de-dup backups at that site. Our system owners are OK with a few hours of downtime in order to recover the dbs as they are not that critical to our business. I don't think I could ever convince senior mgt to spend the big extra cost of Enterprise Edition to get Always On. We are just now going to SQL2008R2 for these databases so we probably won't even go to SQL2012 and just skip it and go with SQL2015 anyway.