No, trying to make an unrelated semantic argument (when you clearly understood the point being made) is pointless.
Dude, what the hell. Just yesterday I added you to my list of commenters I keep track of, because you tend to make good points, and now you're simply acting like a dick.
The point that started it all was: should one use a log chart. You said, with heavy sarcasm, obviously not, as eventually all exponential growth must come crashing down.
Which might be true, in the long run,
but until then the correct way to model a certain behavior is still to describe it via an expoential function.
To come back to the bacteria example: just because their growth will eventually cease to be expoential doesn't mean a biologist would not use an expoential function to describe their growth during the time were it does.
Applied to our case: there is nothing wrong with using a log chart. In fact, looking over the price development since 2010, it actually looks strongly like exponential growth took place. You only need to be cautious if you start drawing some long ass line in a log chart and expect it to continue into the next year... then you set yourself up for failure. But using a log chart to begin with is probably the right thing to do at the moment.