Wait. It hasn’t been updated for 4 years, and the price hasn’t dropped. There’s going to be an event this month, probably focused on iPads, but there is a small chance of an updated Mac mini - though people have been saying that for 4 years, continually disappointed. An Intel NUC offers far better value - up to date components, and sensible prices. Is iMessage really that important? Really? What do you use it for that Skype, WhatsApp, or eleventy billion other messaging apps don’t offer?