I would upgrade my system if I possibly could, but I cannot. I'm not going to describe my work, but there is no alternative to what I'm using for the foreseeable future. You can throw out all the options you wish, but there is none right now. Period. I know my business.
The fact of the matter is that I bought SC2 when it came out a year or so ago and I met the minimum system requirements on the box then, and that hasn't changed. I also know software engineering. It is now and has always been a two way street. The developers work with Apple to make software. I bought the original Starcraft 15 years ago when it first came out and guess what? It still works. That took a commitment on Blizzard's part. I am not seeing that kind of Blizzard now. We are talking less than 2 years of commitment. This computer works fine and the drivers are fine. If Blizzard is dropping support for a perfectly functional OS, it is not Apple's fault. That is blame shifting.
I still have not heard anyone say yes or no: will 2.0 run on my snow leopard machine?