It depends. Some people might think so if they don't have much interest or if the variants don't offer significant value. But for collectors or hardcore fans, they can be quite valuable.
One way to get variant comics is by following the social media accounts of comic publishers or artists. They might announce limited releases or special offers for variant comics.
Star Wars wasn't initially based on comics. It started as a cinematic concept that later expanded into various forms of media, including comics. These comics often expand on the existing Star Wars lore and characters.
Star Wars comics can be canon. They're part of the larger Star Wars narrative. But it's important to note that the determination of canon can change over time and based on the decisions of the Lucasfilm Story Group.