Andrew,
I suspect your plant is a species Cym.
sinense hybrid, and I also suspect that it is a mericlone that can possibly be identified down the road. Cym.
sinense will definitely be dominant for the open form for several generations. If it has a slight fragrance, that would confirm my suspicion. As you have learned, warm night temperatures in the house will cause the plant to drop buds. Keep it between 45 and 55 degrees at night before the buds all open and you will avoid the problem.
There is no doubt that "the market drives the sales of orchids". A hybridizer friend of my long ago said that "form will never sell a Cymbidium" and from the response of the viewers of this thread, how true the statement!
I enjoy the open form, but only in the species, and why I have an abundance of them. However, I much prefer the exhibition type and they form by far the greater part of my collection. Each type has its place in any collection and that is why we are lucky in the Cymbidium genus to be able to so diversify. The primary hybrids have become popular in the pot plant market today because they have the open, species-type qualities but are easier to grow and obtain, and less expensive to purchase than the pure species.
CL