I apologize if my post is slightly off topic, but to respond to what someone said earlier - everyone's experience with H would not be the same. The best way go to about it is to visit a store, browse around, get a feel for the brand and its merchandise, talk to a SA, learn about the product you're looking for in terms of color and leather options and go from there.
I know there had been a lot of stories about how some people were under the impression they needed to spend a lot of money buying other things before they can be offered a Birkin or a Kelly; It's not so much Hermes wants you to spend thousands of dollars on things you don't need, but they want you to develop a history with the brand/store at least. You can purchase as much or as little as you want. A good H SA (or any brand really) will not operate on "If you drop a lot of cash I'll offer you a Birkin".
Most luxury brands will reserve their best inventory for their best clients, H is no different. If by any chance, a SA hints you need to spend a lot of money to be offered a Birkin, I would pay a slight premium and buy from a reseller, it's going to work out cheaper that way compare to having to spend thousands at the store first.
I think it's wonderful people share their experiences to offer insights for others, and I'm truly sorry to learn about anyone having to spend money on things they don't need to be in order to be considered for something they ultimately want. But please don't let that discourage you. Everyone's experience will be different. Do visit your local boutique, I've heard great things about the Texas stores
The transition"won't be as smooth if you're going from Jumbo to Kelly because there's quite a bit of price difference, but it will be worth it
Not to mention there are always some wonderful pre-owned Kellys available on different websites. Check out the shopping subforum for reputable resellers list and cool web finds. Good luck and have fun