Well, fishing has always been more important to me than car audio so I put a $2200 trolling motor on the nose of the boat last year but won't spend $900 on a pair of midbass speakers, lol. And want to put a bigger and better graph on the front because my Lowrance Hook 7 is a turd in a punch bowl compared to the Garmin Stryker 7sv on the console when it comes to image resolution. For example an underwater bridge shows up clear as day with the Stryker even with 2d sonar while looking at the same bridge with the Hook has me questioning wtf I'm looking at. Hard to tell what's under me a lot of the time with the Hook 7And reading a depth finder with bifocals is a real PITA. Actually still recovering financially from buying the Ultrex and the system build on the truck. The system in the truck ended up costing way more than intended but have finally learned to buy once and cry once within reason. This is why I'm way more likely to waffle forever before finally pulling the trigger. Research, willingness to pay the price, and justification for my needs have to all agree with each other.
I will say this much...once you spot lock in 20+ mph wind and not have to fight to hold your position you'll kick yourself for not taking the plunge on an Ultrex or similar unit soonerIf you're just a bank beater and/or fair weather fisherman I wouldn't bother. It's all about what your style and priorities are just like car audio and anything else.