Thanks for the heads up. Totally forgot they have lifetime warranty. Just filled out a claim because the right speaker in mine doesn't work.
Also, I know you're not giving a discount to people, but if you want to entice them, I'd definitely discount it a little. Otherwise most people would rather just buy them their selves. Not to mention most of their products can be found at almost half off prices if you search online stores good enough. Anyway, good luck on getting rid of your coupons for actual cash.