I'll answer for Brother Spudsie,
Old! 
, The average age for HP's 13 757's is 14 years, compared to 6 years for the A320's and 1 year for the A319's
p.s. HP's 737-200's have an average age of 19 years, which sounds old until you look at Northworst's 30+ year old "Classic" DC-9's!
[This message has been edited by snake (edited 02-03-2002).]