None.
When some people at a local gaming forum ask for a good keyboard, I point them to the Steelseries 6Gv2 and 7G (the only mechanicals sold here). Then they say - looked at them, didn't like them (of course, they only looked at them, not went to the store to try them out...). After a while they post pictures of their shiny new l33t Logitech G15, Saitek Eclipse or some Razer (not Blackwidow, mind you). Then I'm like - oh well, I'll see how you cry after a few months when some of the macro keys no longer work and besides, under those LEDs it's just a 10€ supermarket keyboard. Then they tell me to f**k off and ramble on about how some uses one like theirs during tournaments and that guy really knows what he's doing (and at this point it becomes clear that there's no use arguing further and I leave the thread).