Are you currently in the pet market? If you aren't then I would look into it. Vanity pets are a nice supplemental source of income. The pets you can get in all the major cities will easily go from 2-10g in the AH and are only an investment of 50 Silvers or so. Pets such as the Ancona chicken (available in the Mirage racetrack in thousand needles) can go for 30g on a 1g investment. These sell rather well due the their location, few people are really willing to go all the way out to thousand needles and pick this thing up. Most of the pets that require some legwork are much more valuable then those that don't. The pets available from Dealer Rashaad. at the consortium (The Mana Wyrm, the Blue Dragonhawk, the Red Moth, Siamese Cat) easily sell for 3-10x their cost. You can also make a fairly good profit on the Dalaran pets which can be obtained for 40-50g depending on rep and will sell in the AH for around 100g (beware however the deposit cost so post one at a time). and Rare pets like the White Kitten and the Black Tabby can go from 200-1000g each.
What does this have to do with portals you might ask? Well grabbing the pets is something that I do more when it's convenient, I tend not to go far out of my way unless it's to buy several in bulk and sell at a huge markup. I will pick up one of each pet in Dalaran whenever I am there as it's where I and, for that matter, most people have their hearths set. The portals in Dalaran make getting pets simple... port to whatever city I want.... grab whatever pets I want to make a little income on top of my main markets.even a port to Shat is an easy AFK fly to the consortium. Well...... that will now be a thing of the past. The portals in Dalaran and Shat are soon to be gone. What does this mean for the pet market?
Right now almost everyone's hearth is set to Dalaran, it's easy access to the portals being a main reason. Come Cataclysm the rose is off the bloom and Dalaran will be abandoned by most players and main cities like ORG will be back to the main hub in the game. Many of the pet farmers are lower level toons (bank alts and the like) and will suddenly find their ability to get pets terribly hindered.
I see this causing the price of pets to increase significantly...Several low level pet farmers will see the added time involved in getting the pets and look for new markets. Is it possible the the Dalaran pets could reach 300g? Could the pets from the consortium increase even more? I think they will, but I would like to hear what you think. Do you plan on looking at pets as a larger source of income?