Was shopping on Amazon for some things and need to add something to my cart to get the free super saving shipping Still haven't picked up a spare carpooling booster, so I thought I might grab one of those. Any concerns about buying one from Amazon warehouse? I see a $14 Evenflo Amp that is listed as open box, says it is in original packaging but packaging will be damaged. The last item (a toy) I got from Amazon Warehouse that said this all the interior parts were still sealed but the outside box was beat up a bit. Wasn't sure if that was OK treatment for a carseat though....