I love the Oaxaca cheese that the vendor sells at the Wednesday tianguis - the guy with the glass fronted case who also sells tons of yogurt. It's the freshest and tastiest I've found. I have never found a Mexican cheese that was even vaguely sharp. I buy my sharp cheeses at Costco. One of the few American items I'm not willing to live without. They sell the Tillamook white extra sharp for a decent price, much cheaper than Walmart who has now started carrying it as well.
I'm in the bring one suitcase camp. Possessions aren't all that important to my husband and I, and we knew we were going to rent, at least for awhile. It was us, two dogs, and whatever else we could manage to fit into the sedan. We've never regretted it. I enjoy trips back to the US to shop and visit friends, but am always thrilled to come home to Mexico. I could not afford the lifestyle I live here back in the US unless I were to go back to work, god forbid! I agree, one should think long and hard before packing up lock, stock, and barrell and moving to another country - whether that be moving to Mexico, or back to your homeland. The memories are often sweeter than the reality.