As a guy who sells his boat every 2 year, I have been happy with resale. In fact I feel it's gotten better in the last 2 years. 58k for a 21 foot plus boat dual console with dual blades. Skeeter is at 68+ for an fx21.... course that is not a dual console.
Rod straps are standard. If u want something else u gotta pay.
Valves are the same on many other brands. Z21 has stainless latches. Seat quality issues have been addressed on the 16s and up.
Have not seen too many underpowered Nitros shipped. They do get ordered by customers though.
Wooden stringers.... damn that was 15 plus years ago. And on the NX models.
They are all good. And all have there selling points. But then again I must be an azzhat.