Conservation of Mass (continued)
So, is Conservation of Mass evident across the entire FFU? Yes, but it's not as easily demonstrated outside of TB. And it's less of a hard and fast rule than it used to be.
There has been a definite trend over the past couple of years which bucks the Conservation of Mass theory. It doesn't render it invalid, but it does stretch the definition a bit. I believe that by and large the entire FFU is moving upmarket - kind of like what Volkswagen is doing in the automotive world. For decades, VW was known as a producer of cheap transportation (Beetle, Rabbit, older Jettas, even the defunct Dasher). The word 'luxury' did not belong in sentence with the word 'Volkswagen'. Sit in an '85 Rabbit and you'll see what I mean. But beginning in the late 90's with the introduction of the Passat, the company has made a concerted effort to draw buyers looking for something beyond basic transport. The entire model line has been revamped over the past decade, culminating in the production of two definite BMW/MB level monsters - the Touraeg and the Phaeton. They ain't your father's VWs. Along with the move towards slightly more highfalutin' vehicles, prices have risen as well. VWs still represent a great value - I don't think there's another vehicle which matches the Passat in terms of overall features and build quality - but the improvements carry a cost. And will VW actually be able to sell $30k-$40k vehicles when for decades they've been known for their entry-level automobiles? That remains to be seen.
Where am I going with the VW analogy? The FFU hasn't undergone the same kind of complete transformation, but it's clearly moving in the same direction. Compare McD's 80's-era menu with their menu today. Actually, that's an exercise I'd love to do in detail, but pending a source of old menu information, it's going to be tough. But what I'd bet you'd find is this: ignoring inflation, core items (cheeseburgers, Big Macs, fries, apple pies, etcetera - the classic stuff) have remained at more or less the same price points. But newer introductions - fancy-shmancy salads, Big & Tastys, Chicken McGrills - carry a higher price tag than anything you'd find on the menu back in the old days (again, adjusted for inflation). McD's is probably the worst example of the phenomenon, given that much of their menu is probably locked in for eternity - but the trend is there. BK is a better example, since outside of the Whopper and basic burgers, there isn't much an 80's era FF patron would recognize on today's menu. I'll bet that patron would suffer sticker shock.
As with VW selling $40k vehicles, I think the average consumer is a bit leery of buying $5 shrimp salads at Burger King. To what extent will this move upmarket actually prove profitable? Outlook: unclear. We'll just have to see how long shrimp's on the menu.
This all leads me to Conservation of Mass Corollary #1: It's easier to justify a price increase if the product has some marketable improvement. Cases in point: McD's "triple-thick" shakes, or Wendy's 'new' line of chicken sandwiches. They both probably cost a bit more to produce than what they replace, but they also carry a higher price tag - and I'm certain the FF establishments aren't losing money on the deal.
Anything else we need to know about the First Law of Fastfoodynamics? The next chapter will tie up the loose ends.