Is any usable content actually locked behind Amiibo cards?

So I used my Harriet card that came with my game and was a bit surprised to see there were no requirements for her home and best I could tell she didn't come with any extra items. And aside from the "special" characters, all the amiibo card characters do seem to be ingame and while each character unlocks items to use, apparently more than one animal can unlock the same stuff as well (I haven't seen repeats myself, but I've been told this).
So is any content, usable in a normal design (so, not people), actually locked behind amiibo cards or is it just a way to make sure you get to make a home for someone?
Best Answer
No it's only "specials" like Tom Nook and Sahara and Timmy Nook etc etc
All other characters can be found in game through playing a lot
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Can you use already used Amiibo cards?
Yes, you can reuse amiibo cards as many times as you like. Each amiibo uses an NFC chip to send data to Nintendo Switch or 3DS consoles. The chip remains intact after being scanned, allowing you to reuse the card as many times as you like.Are Amiibo cards the same as figures?
amiibo come in different formsSome amiibo are figures, while others are cards, but they act the same way and can do the same things no matter which form they're in! If you have a compatible amiibo, you can tap it while playing compatible software to power up your gameplay in different ways!How do Amiibo cards work?
Each figure or card can bring a specific villager to the game either for a photoshoot or so that you can invite them to become a permanent resident. What's more, using amiibo cards, you can invite one of the 390+ villagers to your island to recruit them.AMIIBO CARDS ARE BACK!! | LET'S OPEN THESE UP!
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