1. W
hat do you consider a fair price (for both breeder/seller and buyer) for an adult axolotl? Should this price include the full cost to produce said healthy adult, like a year worth of food, energy use, etc.? If not, why not?
Just looking on the replies so far, the price of axies has a huge range depending on the location. For me, a fair price would be £15 GBP but that's because that is the common price where I live. I would advice you have a look at your competitors prices and evaluate if they are fair or not and adjust your own accordingly. You mentioned a website so I'm going to pressume you intend to sell inter/nationally. I would calculate how much you will need to spend on caring for each axolotl and then factor in a reasonable profit for yourself.
2. If you were in the market to buy an adult axolotl, would you look to buy one at the "fair" price mentioned above, or look for one for less (not including "rescue" scenarios)?
Neither, really. Price is secondary to me, to things such as the condition of the axolotl and the care they have received. Having said that, if there were two equally competant breeders but one was cheaper...well, nuff said 
3. Would
factors like breeder's reputation, breeder's availability to answer questions, and breeder's recommendations for useful aquarium products, etc.
influence how much you are willing to pay for an adult axolotl?
By how much?
Definately. Reputation is important, if I was recommended a breeder by another hobbyist, then that breeder would be top o my list. However, I think it's a bit earlier for you to factor 'reputation' into your starting price, because it's something that is earned over a long period of time. When I got my first axie, I received a lot of advice and the shop I bough him from know what they were talking about. If I was buying my first again, I would probably pay £10 GBP more for this. For one thing, the breeders knowledge would assure me that I was investing in a healthy animal that will be long-lived 
4. In general (and
especially if you are new to caudates or axolotls), would you prefer to buy a "
ready-made" adult axolotl, or a "
do-it-yourself" egg or juvenile axolotl? Does initial
price factor into this decision? Do you feel that one or the other option is more economical over-all?
Juvie was my preference. And I think they would work out more economical for you, as you can house more juvies in a tank than adults and feeding costs will also be less. I wouldn't advice selling eggs to first time owner, I know a couple who bought 40 eggs and ended up with only one reaching the juvie stage. They didn't actually get their moneys worth. Also, it isn't difficult to find eggs going for free, or a few quid.
5.
If you had never cared for caudates or heard of axolotls, and stumbled upon a website that advertised a beautiful type of aquatic pet, and provided useful information and materials to get you started, how likely would you be to buy one of these animals from them? As an experienced caudate enthusiast and/or axolotl owner, would you consider buying from an outside website if it looked professional and legitimate?[/QUOTE]
Definately not. I know from experience that a professional website doesn't mean there's a professional business behind it. One example, is buyaxolotl.com. Generally among hobbyists, they have a poor reputation and are seen as expensive. The website comes secondary, firstly you have to have the trust and reccomendation of the hobbyists. Don't underestimate the power of word of mouth.
The problem with websites is that you can't see the condition of the animals or the tanks etc. Any pictures could be pasted from another source. I don't think many people would independantly put their trust in a webpage especially if it was selling livestock. But that doesn't mean it won't work.
One example is exotic-pets.com who have a huge lobby of experienced keepers and novices alike who are very happy with the services and products they recieve.
Hope this helped....just my thoughts
Heehee, I got my two axies for £12..but one was free. Darwin hid in the folds of the carrier bag and only appeared when we had got home. But sshh, don't tell anyone 