how to decide who to sell it to

i'm pissed. and i don't think it's because i responded later than usual.

i'm really upset sometimes with the way a seller decides how and who to sell their items to. say for instance you've decided to sell an item you've only used for about 3 times only for 50% off the original price. naturally due to a women's best bargain instinct there will be many that will express their interest in the item right? so you'll find that your inbox will pile up with tons of email from potentially interested buyers. and you're thankful that there are responses to your item listing that you're trying so hard to let go of so that you can put the money that you receive from selling the item to better use elsewhere.

so you make the sale. the seller gets the $$ and is a couple of moolah richer, and the buyer walks away happily with their latest purchase. everybody's happy. you think?

anyway, what i'd like to know is, how do you determine who gets to buy the item? do you:

1. decide to sell the item to the person based on how he or she is related to you? i.e. your best friend or your cousin or someone personally close to you preceeds people who are total strangers, don't you think?

2. sell it to the first person who offers you the highest amount for the item that you can't refuse, regardless of who that person is or when they sent you email, merely because you wish to make a quick profit, or you just want to get the item off your hands, and the sooner the better?

3. be an ethical and fair seller by responding to the emails according to first in first out? regardless whether the first person to email you wanted to enquire more about the item first before deciding whether to buy or not, but the second email in your inbox is screaming I WILL BUY NOW and is willing to send payment soonest?

in my opinion, the seller should take the time to respond individually to every email received instead of just mass mailing the potential buyers more information about the item and using the 'siape cepat diye dapat method' to make a sale. i felt abit cheated recently because i sent mail to enquire about an item but the seller only got back to me a day later saying that the item was already sold. seriously. it's like my email went to the spam folder or something. and i KNOW at the time i emailed the item was still up for sale. how do i know? it all comes back to my opinion. it makes me feel unluckier than i already am (i was never a lucky person; some people say your luck depends on how you think, and i'm a real pessimist =P).

i'm suffering from PMS since yesterday. so please ignore my frustration. but really, it's so unfair!
bwahhhhhhhhhhhh...