But it's not just the 1st pick, Houston was notorious for signing guys underslot and spreading the money around. When the Astros drafted and signed Lance MCcullers Jr in the supplemental round they gave him double slot value. They did this because Correa took 1.5 million less than Bryon Buxton at #1.
Some of their "busts" if you want to call it that were also parts of trades for guys like Justin Verlander, Gerrit Cole, and Ken Giles.
They also used their farm to trade for guys like Gatis, Maldonado, as well as drafting guys like Carlos Correa, Lance McCullers Jr, Alex Bregman and Kyle Tucker.