You don't want to know how much it costs later to get the N feature.
Your choice though.
I am in the processing of purchasing an Hp laptop (6710b) and have the option of Intel Pro/Wireless that is ABG or ABGN (+$10, of course, for N) compatible.
My wireless router at home is a Linksys, Wireless-G (WRT54G model)....so I know I'll be fine with either in the house (though the N will go unused if I pay the extra for it).
My question is whether or not the extra $10 is worth it for accessing wireless on the road....hotels, cities with free access, etc. Are most using G or N these days? Believe it or not I'm new to the laptop world (always been on a desktop), so any guidance will be much appreciated!