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.
The Sentry in Marvel Comics is a figure with great power and a troubled past. He was created to be one of the most powerful heroes but has faced challenges in controlling and using his abilities.
A 'variant' in comics is basically a special or alternative form. It could be a comic with a unique cover art, or maybe it has some tweaks in the story or illustrations compared to the regular release. They often add excitement and collectibility to the comic world.
Virgin variant comics might be worth more. It often comes down to the demand for that particular variant and how limited the supply is. If it's a popular comic with a very limited virgin variant release, it could fetch a higher price.