Listen.. I know I might anger several people by saying this, but it doesn't matter how high of quality that leather is.... you are paying a HUGE markup on ANY bag that you buy.
If I can design a PVC or canvas bag and pay an FOB of $2.25 for it (retail it at $32)... and a leather bag for maybe $10 bucks, retail it for $98, then how much do you think you're getting ripped off by the higher end designers.
Leather quality or not.
Not to be arguementative (sp?) but there ARE lots of different qualities of leather. Some cost $1.52 a square foot, and others cost $10.72....this can mean the difference between a $10 FOB price and a $100 FOB price. As the article I posted a link to mentions, most designer bags really dont COST more than $100 to make, so when you pay $500 or $1000 for one, you are paying for the overhead of the brand and for prestige more than anything else. And thats ok- if you can afford it, and you love the bag, who cares?