In order to buy the enclosure you must be an apple dev which costs 100 dollars a year i believe. You must also own a mac to be a dev. those things aside this is still a cheap box. Yes i understand sonnet makes their own boxes as well. We've seen multiple tests that say the razer core and similar thunderbolt enclosures bottleneck the gpu only by 15%. Yes you can build a PC for cheaper without the bottleneck but with apple giving official support for external graphics other manufacturers will follow in their path. Companies like dell aren't up at night worried about razer, but they certainly care about what apple is doing.
Can we please stop pretending that windows 10 isn't a gross operating system. I use it, its inconsistent and crashes.