Yay for pyramid schemes - great for the clever, greedy bastard who comes up with it, and his early adopter friends, not so good for all the thick, even greedier sods who pay into it later on.
think about it - the money's not coming from anywhere but someone elses bank account. sooner or later, if a few people are getting mega rich, someone else is going to end up losing out badly as well. it could be you.
anyone remember the fun that was had a year or two back with the "women helping women!" scheme that was running (not just financially and morally unsound, but discriminating and offensive too!)??? seemed to have the most posters up around council estates for some reason, hehe... spotted it for what it was quite quickly, and lo and behold -- a couple months later, the local rag was running stories about all these fat, dole scamming single teenage mums weeping over losing thousands of pounds to it.
good gravy, how mental is that? £20 for the chance of getting an ipod with cashback, sure, thats no great loss, it's similar to the current trend of cashback-in-6-months mobile phone offers (with the added dodginess of it being advertised through a brightly flashing internet popup - not a good sign)..... but a grand or more, basically your entire savings plus pin money for the month? what was going through your mind? basically just throwing your money away - or to be kind, giving it as a present to someone you don't know..
save your cash and get something a bit better and less bloody trendy!

*waves n-pod*
(the nano is sleek as greased f**k, to be sure, and i'd like something what looks like that... fact of the matter is though you can get already similarly small and capacious mp3 players, without the apple branding and NOT locked into itunes (but will still play stuff from it), for far less cash. who cares about the styling when it's in your pocket?)