It's my birthday next Friday and my present to myself (and from my lovely parents!) is a Kindle. However, I'm unsure whether to buy the 3G or the WiFi. I was originally planning on buying a 3G one as I intended to go travelling next summer, however now that's being pushed back for a few years and I'm wondering whether it'd be better to buy the wifi one as I'll no doubt just replace it before I go travelling now (I don't expect it to last for a few years before I go plus the few years afterwards too!) and the UK has good wifi access most of the time! Which would you buy? Would 3G be a better choice or would I be best with wifi?