Given the high price of storage upgrades for the new Mac minis, has anyone thought about buying a 128 GB base model and using a larger external SSD as the system drive? This has been a popular solution with people who didn't want to open their older minis to swap out the HDD or create a Fusion drive. The main reason to have a large system drive is that both iCloud and Dropbox need to be on the system drive to avoid synchronization errors. If you want a local copy of everything you have in the cloud, you need a system drive that's big enough to hold them. My current desktop Mac is a 2012 mini with a 2.12 TB Fusion drive. I just switched from Dropbox to the 2 TB iCloud family plan for my wife and myself. Eventually, I'd like to get a new mini for the 4K video support. I'm guessing that an external system drive would provide a performance hit, but it hasn't been that significant for people who have done it with their 2012 minis. 1 TB SSDs have really come down in price.