The things people get wrong about Bus and Nova.
For one, people think Bus has no text when playing with Face Cards in your deck.
Obviously false. It's not that hard to remove them. Moreover, even if you keep the Face Cards,
it's not that hard to Discard them and/or play them as non-Scoring Cards.
Perhaps playing them as non-Scoring Cards is not obvious and could be aided by more clear/consistent Joker phrasing. 🚢
People often geek out about how big you can grow your Bus in theory, but few people have actually gotten there.
What happens is, Bus becomes so big that your High Card starts to one-shot,
in which case you are limited to only one Hand per Round.
Yeah, you can still grow your Bus to a "pretty big" number, but you start losing the ability to grow it.
In contrast, you start growing your Nova before you even buy it.
When you pick up Bus, it's "oh, this is what I'm doing now."
When you pick up Nova, it rewards you for what you've already been doing
(possibly playing around a future Nova like playing around a future Telescope).
You can put off buying it to keep growing it. And you often want to.
Bus allows you to grow it with High Card while still keeping something like a Flush as your main Scoring Hand.
Whereas Nova doesn't. Once you pick up Nova, you're limited to one Hand per round.
Nova is much harder to grow.
In my opinion, Bus and Nova are actually very different.
And not just "hehe, High Card goes brrr."