[quote name='Nintendonly']Amazon Prime costs $75/year.[/QUOTE]
You replied to someone asking if the game was worth it for the price. You have no idea if they have prime or not so adding in the shipping charge doesn't make much sense to me. The question was whether the game was worth it for $16 or $17 (not sure what it was going for at the time.)
Ultimately, saying prime costs money each year doesn't hold water as an argument. Either you pay for it once and don't pay shipping for a year, or you don't and then factor in shipping prices. I don't see others factoring in best buy gamers club or gamestops powerup rewards cost into each purchase they make after the fact.