# Gavin Andresen
# 2012-09-09 16:03:09
# https://bitcointalk.org/index.php?topic=107197.msg1173938#msg1173938

Old coins are preferred over new coins because transaction spammers spend coins over-and-over again quickly to try to flood the network with transactions. @p{par}

Unintentional transaction spammers (like people playing SatoshiDice over and over) accidentally do the same thing, so their transactions are given low priority and can take a long time to get confirmed. @p{par}

Maybe think of it this way: @p{par}

+ Transaction fees are to pay miners to include your transactions. @p{brk}
+ Transaction priority is used to "pay" for the network bandwith used by free transactions (note that any node relaying or listening for transactions pays the cost of every extra transaction). @p{par}