eBay routinely has 2.8GHz top-of-the-line 2015 Retinas + discrete graphics cards, usually used but occasionally brand-new, for great prices. Just saw one with a 512GB SSD and only 17 cycles on the battery for $1545. Our entire office is stocked with these. No problems at all. I'm not going anywhere near the 2016/2017 models for various valid reasons.I'm kicking myself, as the 2015 discrete GPU models were still available up through a week or two ago - I was pricing them out but didn't pull the trigger. They're now all gone, and I can't find anyone with new units available (other than with just the integrated graphics). Guess I'll keep an eye out for refurbs.