lucy24 - 10:38 pm on Sep 23, 2012 (gmt 0)
If someone can't use a different browser then it will lead them to question why they're stuck having to use something inferior.
How 'bout: Because they gotta eat, and this is what's available.
Not all 9-5 browsing is people goofing off. Some of it's directly related to the job. Of course if your site is targeted at voluntary visitors with plenty of disposable income, and it's so attractive* that people will happily change their preferred browser to be able to see it, that's a different story.
* By word of mouth, I guess, since by definition they haven't seen it on their own machine yet.