EBAY

I'm a big eBay fan and check it before buying almost everything but one thing puzzles me... Why do people get carried away to the point of overpaying? Take snow boots... I am currently hunting down snow boots for Léon, Anna and Amaia - the wee buggers have all grown out of last year's and call me cynical, I have a bad feeling about the chances of this winter being snowfree. First I checked for Anna's size (UK 8). I could get 'used once or twice' for £3-50 (plus £3 postage) or new 'buy it now' for £8.99 (plus £3 postage). I check Léon's and Amaia's sizes and find similar. So for a week I have put bids in on the used ones, stating my maximum at £3-50. In the last half hour bidding gets silly and as I watch, not moving my bid, four pairs have now gone for between £9 and £13. Why would anyone pay £13 (+£3) for used when new is £8.99 (+£3). Am I missing something obvious or are they all daft?