as other posters on this thread have mentioned, i think it really depends on the community you belong to ... many GNU open-source hackers swear by C and won't touch managed code with a ten-foot-long stick because of their associations with Sun (Java) and MSFT (.NET) ... whereas if you're writing enterprise applications in a big company, your entire firm is probably on .NET and would scoff at those unix hippies still using command-line gdb :) joelonsoftware has an article entitled Biculturalism that addresses this issue:

http://www.joelonsoftware.com/articles/Biculturalism.html