Yup, buying netbook definitely makes sense
every people has different type of works so there are different kind of variants of laptops .. some use their laptops for watching movie and some for serious office works and others for gaming in lan parties ( think of laptops with core i7 cpus and powerful gpus ). But for a user who works with office apps on the go does really need that much poiwer ? So he may a think a gaming laptop is just overkill
Many users only works with office apps or spend 2-3 hours daily on internet find netbooks very useful as they don't need to insert CD or DVDs too often and it saves a hell lot place in their congested work area and the power saving of these netbooks are very tiny. for eg. Samsung has a nebook with 160GB HDd which with a external disc drive comes around 16.5K is enough for office and internet related needs.