On a more serious note if you collect your
hands in a tracker, you will see, that over a reasonable sample like 50.000 to 100.000 hands, AA is winning around 80% of the time. Maybe a bit less, if you constantly play it passively, and therefore allow other players to realise more of their
equity. But for a standard TAG player 80% is a typical number, and AA is also by far the biggest winning hand.
So why is there this myth or feeling, that AA "always gets cracked" and especially by hands like 87s? Well first off all medium suited connectors like 87s are actually the best hands to have in order to crack AA. On average 87s has 22,46% equity against AA, while AKo only has 6,83% and KK only 18,06%. So 87s does actually crack AA more often than those premium but second best hands, that people often go all-in with preflop.
The other element is, that typically the player with AA will do a lot of betting and raising, and then the player with 87s will not go to showdown, unless he improved to two pair or better. Few people are willing to play a big pot with a pair of 8`s or 7`s, which by the river is usually only second or third pair or even worth. And of course nobody are ever calling on the river with 8 high, if they ended up with a busted draw.
So when AA hold, we often dont get to see the 87s, because the hand will not go to showdown. Of course there will be exceptions like, when 87s decides to
bluff, or when the board run out something like AK882 giving 87s trips but AA a full house. But 87s will mainly get to showdown, when it can beat AA. So with AA against 87s we either win a small to medium pot without showdown, which people tend to quickly forget, or we lose a big pot at showdown, which people tend to remember, because its painfull.