I don't understand what people have against flash. Sure it has a few secuity holes, but I've always maintained that a good secuity program will mitigate this. Sure it used to be a resource hog, but since I got my current laptop (i7-2760qm 16gb ram) I've never noticed performance issues related to flash, so I think it just needed computers to catch up to it.
There are many sites that still rely on flash especially since I can't stand Firefox past v20 or so so most of the html5 video etc doesn't work properly. As long as you have a decent computer and security I don't see it as a problem. I do however agree there is no need for it on business computers.