Depends if you need to transfer your cards in ultra-quick times. If you've filled half a dozen 8GB cards then it's advantage having a fast card reader (though I'd sooner use the pro grade firewire ones than anything based on USB personally).
But if you haven't got a camera which eats storage alive and are just downloading 8GB or so of photos after a week away then it's surely more sensible to make a cup of tea than spend on a fancy card reader? (I don't know how much they are, I know my firewire reader was £75 or something silly though when I bought it a year or two ago).
Basically, you know if you need something like that, if not I'd prioritise something reliable, fairly tough and portable over speed. On the other hand, if it's going to sit on your desk and it's a few £s more then why not.