@Simeon Amburgey
I would also say Sound City. And the Manley VoxBox. Already got the latter, as well as the first Producer Bundle, especially for the instruments (as you did).
Had been thinking to get the Signature Edition including 44 native plugins (of which I already have 11) because of its compatibility with the Softube Console 1.
But I decided not to, as I already have the Slate VMR rack and too many other emulations. And I don’t like UA’s bundle policy, not allowing for upgrades, as I dislike paying for the same plugins all over again
But yeah, the Manley VoxBox and Sound City are quite unique (as is Capitol Chambers). Just not sure I’d give more than $15 each for them.
Maybe I’ll get more (free) with their upcoming interfaces.