My recollection was that it was Blackburn rather than Newcastle who won Shearer's signature ahead of the rags - and for nothing like £15m?
Were they ever even in the running when he left Ewood Park? Again, totally as I recall it but I think most fans didn't take any of the reports of their supposed interest at that time seriously because Shearer's dislike of the rags was pretty well known at that stage.
You might we'll be right but I think it was the earlier if the two deals when they came closest.
As for your general argument that United didn't buy success. It's a well worn tale but one that consistently avoids the inconvenient truths. Things such as fielding the most expensive side in British Football history in 1989 and breaking more British transfer records than anybody else during Ferguson's reign.
To be fair, their record of promoting from the academy was about on a par, number-wise, as everyone else at that time. Everybody did so because there wasn't enough money to do anything else. What they did do differently was promote a top standard of player - from the only elite academy in English football - into a well stocked team.
There are two elite academies in English Football now (City and Chelsea). They will never promote the same volume of players into their first teams though. Neither will anybody else. This is because the money is in the game (at the top end, obviously) to buy ready-made players and the demand for success is such that clubs can't afford to fall away from the top end of the game.
So, I guess they'll always have that little boast and fellows like you will forever glibly accept and promote it. That's your prerogative, of course.