I got a tomtom one 3rd edition this weekend for 149$cdn. So far i am liking it. I have been messing around with it for a couple of days now. But i have started wondering if i should take it back and get a ONE XL-S (299$cdn). It is almost twice the price and i ain't really sure if it is worth it. I am looking for some insight. I know the XL-S come with a bigger screen and an SD slot and Spoken street names. BUt besides that is there anything else. Why the extra 150$. HELP. Thanks..