I've always been sceptical of the advantages a $20 pair of tweezers could offer over a cheap $5 supermarket pair. I don't know if supermarket tweezers are the same all over the world, but the tweezers from Woolworths are pretty good here!
Well, it turns out that the main pro of a fresh pair of Tweezermans is that, if you can see the hair, you can pluck it. My supermarket pair, while handy with most hairs, just can't quite grip the tiny ones that give me the darkened-skin look under my eyebrows.
With the slightly larger hairs, or the super-short stubbly ones, I sometimes have to try a few times to get a good grip and pluck them out with the cheapies - with the Tweezermans, it's a one-grab job. Since this is a problem that often makes me give up altogether on the whole plucking process (pluck you hair, pluck you!), Tweezermans have been a bit of a godsend.
So if this is also a problem for you, Tweezermans might be a good investment. Although pricier, you can send them back to Tweezerman to get them sharpened for free (you need to pay the cost of postage though), although if they need extra repair (such as after being dropped), you can buy a new pair for half price. If you're only interested in plucking big fat nasty hairs, supermarket tweezers would be sufficient.
For me, as a butterfingered recovering compulsive hair puller, I'm keeping a pair of Tweezermans on my desk next to the light-up mirror... and five pairs of cheapies in the bathroom.
(Product provided for honest review. For more details, refer to disclosure policy.)