With the current Boost frenzy going on I though I'd offer this up. Here's how it works. Go to the deal, click on the "Name your price" button, offer $100, and it will come back with the counter offer of $130. Note, if you don't register with them first the discount will not transfer to the check out, so if you want it, register first then do the above. Enjoy.
And, as if you didn't know :-
80GB and 12 MONTH EXPIRY. UNLIMITED Calls & Text to standard numbers. UNLIMITED INTERNATIONAL standard calls & text to 25 selected destinations +1200 standard mins & text to 30 selected destinations.