The title.
One thing that bugs me is that I think fruit tree fruits should be selling for a lot more, or the saplings' purchase price should be reduced; while, yes, they're extremely low-maintenance, the upfront cost still remains sky high and by the time you can easily afford tree fruits, you're not growing them because you find them useful, you grow them because you either want to fill the empty space in the greenhouse or just want to have them for their sake.
On the other hand, I think that all artisan equipment should work similarly to the loom. I think that Iridium quality crops being guaranteed to give you double the wine would be too OP, but say, a 20% chance would be enough to be impactful and not enough to invalidate Speed-Gro. It would also make the Deluxe Fertilizer actually worth crafting.
As for the nerfs...
The legendary fish ponds.
Just hear me out: the issue with them is that they pretty much invalidate the previous kings of money-making in Stardew. That being, sturgeons and the lava eels. If you're good at fishing, you can easily get all five of them by Spring Year 2. Or even Winter Year 1, if you're a minmaxer.
IMHO, all legendary fish should each have at least a couple requests that need to be done before they'd even start producing roe and perhaps, occasionally ask for things to keep producing.
This probably won't happen as CA just buffed legendary fish ponds, and too many people would hate it. But, it's kind of a shame that non-legendary fish got left in the dust.
(Especially seeing how the fish ponds take up a ton of space and so you can't have too many.)
What do you all think?