A lot of it depends on your fishing style/methods and length of fishing outings. Sure, more is generally better, but along with that comes added price and complexity. Only you can really decide on the value of that.
True words.
You’ll never want more motor if you get that 24v 80# Terrova as Mark was saying. However it’s more up front cost. Replacement cost and complexity goes up. If one battery goes bad, you’re buying two. If it’s just time to replace, you’re buying two.
Fishing partner and I have nearly identical 17’foot wheel boats. He’s got the 12v and I’ve got the 24v. It’s a running debate. If you’re not in current or not pulling spinners all day then the 12v seems to win the conversation. Only need one charger for a 12v.