Just when I got off from work, this was sprung on me...
Yeah, no...
Talk about a false equivalency. Animal Crossing Amiibo Festival centered around the cast as a whole and many characters got amiibos when that game launched. You know how many amiibos Poochy & Yoshi's Woolly World launched with the game? 2. And Mega Yarn Yoshi was a Toys 'r Us exclusive that functioned the same as normal Yarn Yoshi. Poochy on the other hand, came bundled with the game (similar to how Isabelle and Digby were released for Amiibo Festival now that I think about it) and the only added amiibo functionality, as well as the built-in features, centered around this ONE character. To compare how Poochy's amiibo was handled to Lottie's is stretching...
The price of an amiibo is not an indication of popularity as unless you have hard sales data, trying to determine how much supply was generated for one and the demand for collectors and/or consumers is unfalsifiable. (Although I did say that Poochy came bundled with the game)
EXCEPT...
When you mention Lottie's price, you were implying that the lower price meant lower demand. After all, Lottie's a "bottom-of-the-barrel" character isn't she? So I merely went along with that mindset when stating Poochy's price. Nothing more, nothing less. But since you revealed how that argument goes nowhere, therefore making both of our points null, it only puts us at a standstill...
Regardless, the fact that Amiibo Festival was
centered around the Animal Crossing cast and Lottie, out of all characters, got an amiibo figure surely means something? You argued that Poochy's incorporation in the 3DS game was notable, and I was drawing a parallel to that. It's not a false equivalency at all given how the Amiibos were needed to play the game, and Lottie was one of the few characters to be given an actual figure.
Additionally, the fact that the character itself got an amiibo doesn't mean as much as you're saying it is considering just how many characters get amiibos, including the aforementioned Lottie, Loot Goblin, and literal Pikmin.
This is, of course, ignoring the previous claim that DLC characters must have the capability to create hype and draw in outside audiences that you have yet to truly refute. This is a stated goal of Nintendo's from their
2019 Investors Meeting:
With Super Smash Bros. Ultimate, we asked 'How could we reach not only fans of the Super Smash Bros. series, but also those who had never played it before?' If you look at the demographics of the consumers who purchased each of these titles, Iʼm not convinced weʼve completely overcome these challenges yet. So our aims are to keep working on them this year, to expand sales of these titles to new consumer demographics, and to keep selling these games for a long time, which is one of our strengths."
I'm not saying you should stop supporting your character, but I'm saying that you're overestimating his chances. The overlap between Smash Bros. fans and Yoshi fans is incredibly large, and Poochy doesn't have the demand or notability compared to other characters to compensate for that. You can't really argue against that, as even fan polls or mentions within speculation largely neglect him.