I say buy both sizes if possible-- the 25 and the 30, hehe. I've got the Speedy 25 but it really is starting to look a bit 'small' in comparison to all the larger bags people are toting these days and I'm a shorty...so I'm going to buy a Speedy 30 in the near future...both are good, actually. IMO it's how you carry yourself (and your bag!) in the end and LV and Chanel as someone previously mentioned are truly 'classics' =)