You spend the gems on building structures in the levels, which cost a lot.
You run out of key items to buy pretty quickly, anyway. I don't buy this whole "I have nothing to spend raw material on" thing
I have not bought 90% of the gear, and I’m not going to, and I stopped buying items immediately after walking into a boss fight with full bombs and decimating it in two seconds. It’s overturned, and if I want the game to be fun, I have to ignore it. And therefore, I have a surplus of gems. So the reward structure doesn’t work for me. So I don’t like it.
The structures don’t cost enough to offset this either, and besides I don’t think it’s fun to build structure from gems I already have on hand anyway. It’d be more fun if the pieces to the structures were placed within the levels like they were in 3. Basically, it’s a good thing the game is insanely fun without this, because the rewards for the side quests are 30 gems when I’m sitting on like 500. Lol.
“I don’t buy [what you’re saying]”
We’ll it’s the truth so I dunno what else to tell ya.
This isn't a flaw, it's a well thought out design choice. You would be complaining the game is too easy if they did allow more Pikmin.
The limitations invite strategy, which is the whole essence of the game. It's the reason why we still have a time of day limit.
I literally just said this three posts above yours. But not every decision is immune from criticism. I think the 3 pikmin type limit is both too restrictive, and doesn’t invite much strategy at all, specifically because of how the game handles other things. Like how game tells you what pikmin you should use. That doesn’t promote strategy. (on the surface, that is. Of course all the limitations work great in the caves with the more curated levels. Limiting your types and telling you which ones to bring is basically mandatory for how caves work). It’s especially egregious when you don’t have a way of renewing certain pikmin types without going back into caves you’ve already done. That’s a pretty pointless grind that could’ve been avoided by just giving us more onion types (which they may do later. I just finished getting 100% in the third area, so if they do later, I think they definitely should have introduced them more steadily throughout the levels).
A five type limit, along with easier resupply of certain types, and not telling you what types you need above ground, would have been better for me. Also don’t forget that the more types you have on hand, the less pikmin you can have per type. Which I believe actually leads to more strategy, not less. It would probably be unreasonable to expect the player to handle every single type at once, though, so I think 5 out of 8 would be a good compromise. By limiting it to 3, they basically painted themselves into a corner and
had to tell us what pikmin we’d need or else people would get annoyed and overwhelmed by constantly running up against challenges that they could complete without going back to the onion. So I genuinely don’t think it’s a very well thought out decision.
That said, this annoyance really only applies to ice pikmin so far where I’m at. There’s many needs and uses for them on the surface, whereas the other types are basically not needed at all so far. But they decided to treat ice pikmin like the others that are only used underground (so far). So honestly, they could get away with a four pikmin limit, and wouldn’t even need to go up to 5.
Which is a long way to say that I don’t think the pikmin type limit creates any meaningful strategy at all on the surface stages, and isn’t actually that well thought out.