I can't believe that I missed this thread!! Nimpo Cub is correct, I sold the 185 this past September and I am not happy about it but life does goes on.
"Why would anyone in this country voluntarily visit Mexico, and support all that is so wrong with that country with Gringo $$$$?
MTV" I feel the same way about Texas and Misssissippi, but that is what makes for horse racing.
I have been flying into Mexico since the early 80's and probably have more than 200 trips down there. I have had more hassles flying into Canada than Mexico even as a Landed Immigrant of CA. The hassles I am referring to is with Customs in both countries. I speak better Canadian than I do Spanish but that doesn't seem to matter.
Back to the topic of flying into Mexico. I virtually always cleared customs in Mexicali. This was mainly due to my experience that MXL was less agressive in inspecting the plane for inbound duty items. Because I have had a place in Baja since the mid 80's, I ALWAYS enter Baja with a fully loaded plane with goods that I either can't buy in Mexico or is so much more expensive that it bothers me greatly. IF one is flying into Mexico as a tourist and are just bringing the normal "tourist" stuff, I don't think it really matters where you clear.
San Felipe has run out of fuel more often than the rest of the AOE airports in Baja combined. Of course in the past far more planes were flying south of the border than they have been doing the past number of years. I think this is because of the economy and the well publicised border violence and just the overall reduction in GA flying in general. The difference in price of avgas between the US and MX recently certainly has not encouraged Mexican flying, but has consistently been a dollar/gal cheaper.
One last comment of plane security, many know that I had a 77 T-210 stolen in Baja in '04 and an attempt was made on my 185 in '05. I feel strongly that "normal" locks on high desirable drug running planes are a waste of time. #1, insure your plane for it's replacement value, this for the US & MX. If not, liability only. #2 even in the US, I used a hidden kill switch for overnight parking. In MX disabling the plane was my goal. Besides the kill switch I removed a function part and replaced it with a dummy. Yeah, I know the anti MX guys will say "if you have to go to that much trouble, why go?" Personal decision. Why some will jump out of planes with "sheets" tied to them, and others won't fly in a plane with less than 3 engines.
So, if you decide to go, have a great time. If you don't, have a great time as well. I'll try and avoid bashing the decisions that others make that are contrary to mine, even though it is amazing at the diversity of opinions and the total lack of common sense in those idiots!
If I went by your thinking, I could never go down to visit my relatives in Kalifornia.
But I've never had one issue with anybody. I did have a bad feel for a couple of places, but I took care of business and got the hell outa there! I still wouldn't hesitate to run loads up into the northeast including NYC. You just gotta know where your going, offload, reload and get the hell outa there. But of coarse it might help being a plus size fella and not affraid to snag some punk kids cheeseburger and fries! 
