From a work site perspective you ONLY upgrade to newer drivers and/or hot fixes when they have been vetted accordingly and it needs to be a roll out that goes out company wide for all for just such a reason you posted about finding a bug that was found because of a graphics driver. Your issue with finding this bug (from the story you relayed) is from people using drivers different than the other ones. Basically you're upgrading for two reasons - bug fix or new features. This philosophy applies to home use as well for the two reasons to upgrade, bug fixes or new features. There is zero reason to upgrade otherwise if the games you're playing currently gain zero benefit from the new drivers what is your reason to upgrade to it? None. You are simply opening yourself up for chance to have a new set of bugs introduced in to your setup and there's no reason for it. Yes you can factor performance increases and image quality fixes for a game as a bug fix, because that's what it is. New features is why I'm wanting to push past 10.5a. GPU accelerated VLC, Flash, OpenCL and other features that have been added as of late are why I'm wanting the newer drivers and I'm sure others as well would like to see the benefit of that. Especially with the release of the new browser betas. The latest drivers comment that comes from video game companies are there in general statements in the hopes that the fixes that the person may be having are actually addressed without them having to update their information on their website and other sources routinely. Calling or emailing for support often tends to garner different information if it's a known bug with a certain driver set of which the developer will inform the end user to roll back to XX or YY set. The driver releases will say "You will get xx% increase in yy" or "aa has been fixed for bb" which tells you if that's an upgrade cycle that you need or want to worry about. The slogan of 'if it ain't broke don't fix it' is a very valid slogan, but it also has to be taken in context to what the problem is. The only 'stupid' thing about that slogan is people who disregard the context for it and try to apply it to every scenario without taking in to consideration the scenario itself. Obviously a fresh install of something can yield different results and installing the latest drivers on a clean OS install is never a bad idea unless the reports are already out in regards to problems with that set of drivers that will directly impact what you will be using them for, in which case you install the last known version that worked 100% for what your needs are. TLDR; If it fixes bugs specific to you, great! If it offers a new feature set, great! If it gives you the performance / image quality boost you were looking to have fixed, great! Otherwise what's the point? The upgrade offers no tangible benefit for the potential of headaches it can incur. Also, calling a tried and true slogan 'stupid' because you choose to not read in to the real meaning of it is 'stupid'.