Originally posted by: TerrHeel
How so? Seems fairly simple to say I bought them both for x, sold one for y, that leaves z, no? Certainly more accurate than using the price of both together at least.
Because they were bought and sold in totally different circumstances: once as part of a package deal and once separately, once to someone who didn't actually desire the thing in question except as an item to flip later and once to someone who actually wanted the thing in question as an end to itself.
Prices in a package deal are different than standalone prices; prices to someone who's flipping are different than prices to someone who's not flipping. You can't subtract apples from oranges.
Again, if you want to say to yourself that you got it for $7075 because you paid X and made back Y, that's fine for your own mental-accounting purposes. But it would be incorrect for someone to say, "Well, the last Stadium Events sold for $7075."
To put it another way, if I were to buy someone's complete NES collection for $30,000, and then sell everything except Stadium Events for $29,000, that doesn't mean that "a Stadium Events just sold for $1000."