A perpetual question hereabouts is whether Mexican chorizo is available anywhere. Usually the answer is no, but yesterday, I picked up 10 links' worth of Mexican chorizo for $6.89 at the BJs in Waltham, near Russo's.
Having thrown out the packaging when I repackaged the links for the freezer, I don't recall the brand name, but I turned a couple links into some chorizo and eggs for lunch this afternoon and I am entirely satisfied with it. If anything, I'd like it to be slightly fattier (it was easily the leanest chorizo I've ever dealt with), but the flavor was spot-on.
Next stop: pot of beans.