I don't think so.
There's no real benefit for companies to hit some arbitrary number either if it means having to devalue their product.
Sony could hit 200 million if they really were hell bent on doing so for example, but it would mean dropping the PS4 to $99 and selling it for another 8-10 years ... they don't want to do that. Because ultimately it means f*ck all to them. They don't get some special cookie or award for hitting some LTD target.
Selling 100 million systems at an average price point of $250 for example is more revenue/profit than selling 150 million but having an average price of $150. Withholding newer hardware just to hit some LTD total is also even dumber business, you're basically sitting on something that could be making your company massive more profit and instead content to watch some $149.99 system spend years doing a slow motion death crawl to some imaginary number. There is a such thing as opportunity cost.
This is why companies don't do this. Because they don't care about LTD that much, it's a nice feather in the cap, but it doesn't make sense when you take into account any other business metric.
You also don't want consumers conditioned to expect hardware at rock bottom prices. You *want* $300 to become the normal in their mind and hold there for as long as possible. A lot of people here just have no clue as to the business side of things.