I'm looking to book a one way PE ticket from ORD to SNG on EVA using their website. For me, extra mileage and the ability to upgrade aren't meaningful. Therefore, with both the Basic and the Standard offerings having the same baggage requirements, it seems to me that the only difference is that the Standard offering gives me complimentary seat selection and the Basic offering doesn't until 48 hours before departure. Since the price difference between these two offerings is $276, it seems that it's cheaper for me to just purchase the Basic offering and pay the extra $50 for seat selection (which I want) than to purchase the Standard. Can anyone tell me what's wrong with my plan?