Just a thought but maybe if you keep your $99 3DS sealed, you could exchange it for a "flare red" version coming out in September. that's a long time to keep it sealed but if you're in no hurry to play it it's within 30 days (red comes out on 9/9)
Not too bad for a DS Lite or DSi trade-in. Given all threads on the 3DS price drop, I thought this needed its own thread.
EDIT:
If you're not a PUR member or don't have a coupon, the trade-in offers are tiered:
DSi XL: $99
DSi : $109
DSL: $119
this amounts to about + $10 trade-in
http://www.joystiq.com/2011/05/31/ds-lite-drops-to-99-on-june-5/
Not really a "deal" but just as a heads up for anyone looking to purchase one...wait!
EDIT: it looks like these might be getting discontinued (http://www.joystiq.com/2011/04/25/gamestop-no-longer-stocking-nintendo-ds-lite/)