I agree, It wouldn't be a big deal for higher transactions but most zaps are fairly small. I guess I was thinking more in terms of the way people use zaps currently (or maybe I'm just cheap). If I zap someone 21 sats I usually get charged a fee because they aren't using ecash, but even if they were, we'd have to be in the same mint to benefit from the lack of fees. People probably wouldn't all settle on the same mint so I don't see how the fee is avoidable for zapping, unless it happens to be someone in the same mint that you are using.
Discussion
The idea behind nutzaps, not the way they are used now, is that you rarely settle them over lightning. This way SATs can circulate between npubs as zaps with no fees. You keep them on the mint you recieved then on and trade them around for free. You can settle them once you have enough accumulated on a particular mint. You can also move them from one mint to another (maybe move them off a public mint onto your own mint), or you can simply use it to pay for things. The power of nuts is you can consolidate small zaps into one large LN transaction and/or an on-chain uxto.
😳 I think I get it now. This is something new that I am unfamiliar with but I think I understand what you are saying, now I just need to figure out how this works in practice. There is so much terminology thrown around on nostr that often times I think people are just talking about the same things in different ways! Haha, thanks for educating me!