fair question.
i do overreact.
i gave OP some guff about this, but i also congratulated him, because he seemed happy with his purchase.
i get angry when people pretend like money has no value (or little), because it has no value to them. i get angry when people spend an extra $500 to get the highest specs on a mac that they will never ever use, simply because they can, when they could just as well have donated that money to people that could really use it.
i get angry when people waste money, because there are a lot of seriously poor people out there.
at the same time, i realize i'm a hypocrite, because i could easily give much more and take much less for myself. but i do not spend money frivolously. i couldn't really if i wanted to, but i hope i would do the same if i won the lottery tomorrow.
the fact is a dollar may mean very little to you, but keep in mind that same dollar means a lot to many people out there. i'm fine with people spending their money on things they need or want, but not when its wasted and i guess i feel like i see a lot of cash flushed down the toilet on this forum.
your interpretation of 'expensive' seems very related to this, the attitude that people should treat the money in their pocket as if they were writing their own personal amounts on the bills.
Bill Gates donates about 50% of his money, or so it is said. if i did this, i'd be in trouble and i couldn't really help too many people. On the other hand, it's very easy for Bill to do this, and he helps a buttload of people. just another example, for your consideration, of thinking of money objectively vs subjectively.