The lack of progress is one thing.

The value for money is another: AI companies are still burning through vast sums of capital, while users are indeed using the products more and more... but still nowhere near at a price that would even cover the companies’ costs, let alone be profitable. If each token costs a few dollars, demand is likely to shrink significantly again... because as long as the systems operate stochastically and, logically, produce erroneous results, it may take a very large number of tokens to obtain a result that’s actually usable (this is especially true when using AI to replace workers whose tasks and skills you actually have no clue about).