I fully understand the official labels, I also know what people call them. The sales on the regular Surface (Surface RT) have been horrible and they are being discontinued by MS. The Surface Pro has been a success and is being continued. Whenever someone is talking about the Surface, they are almost always talking about the Surface Pro unless they specify otherwise. Maybe a better example for you naming wise would be the iPad line. If someone says I just bought an iPad, chances are they bought and iPad Air, not the first gen iPad which is the only one officially called just iPad with no number or designator attached. The only iPad is the first one, there are iPad, iPad 2, iPad 3, and iPad 4, and iPad Air (not counting iPad Mini and iPad Mini Retina).
Trust me I get that this is confusing for people who aren’t familiar with the tablet market, which is why I was clarifying for people who are making the wrong assumptions. I would have named them differently if it were up to me, but when people say Surface they mean Surface Pro.
