And the licensing model will make you pull your hair out. I ran into issues both with geography (not being allowed to use my license on a project in another country) and functionality (hey, that's a cool PROC...wait, I don't have the license to call it)
I think R and python will win the day, but it's not because SAS is anything like Excel. And there are a shit ton of "serious" data analysis people using SAS. They're just all in the enterprise. Every Fortune 500 company I've worked with used SAS except for one (who used R).
SAS is a pretty big system, and I have worked with SAS for about 10 years, and I can't see any similarity with Excel at all. Which part of the SAS system do you think resembles Excel ? Here is a list of their products (http://support.sas.com/documentation/productaz/index.html)
Btw. I do think I am doing serious data analysis in a bank :-)
It's more accessible to people who are not coders but need to do statistics on real data, i.e. almost all researchers.
Although personally, I would use R/Python (the UI is more suited to me, and it's free, and I trust the results a little more, and I can read the code if I need to)... do you actually need anything more than SAS/SPSS provides? I doubt it.
SAS is not very accessible, especially to non-coders.
From a field dominated by SAS, moving to R was a pretty steep transition, whereas when I approached R from having learned Python, things made a great deal more sense having been exposed to other programming languages.