Youtube is just about over-saturated with Pokemon material (it's over-saturated with just about anything video game wise, but that's not relevant right now). It's incredibly difficult to get a following, and those who do have a large fan base usually do for a few reasons: they make really high quality videos, they know someone or get to know people already successful, or they simply got there early when there was little to no competition. There's more to it besides, but from my experience those are usually the biggest factors.
And of course, they all do it because they love to make the videos. I guarantee you none of them make a lot of money from youtube (save maybe, maybe Jwittz), yet that doesn't stop them from uploading. Over time, if they continue to make good quality material, then yeah, people will start watching their videos. One of my favorite new guys on the block is ellpeefoo (spelling may be off), and he's perfectly happy with his (currently) small fan base. If you don't like buying cards simply because you enjoy it, then stop buying cards. If you don't like uploading videos to youtube, stop uploading to youtube. I've made a few videos too, and I really don't expect to ever get a following. Will that stop me? No. Although school might, lol.
If you really care about getting views, it's important to network as well; no offense to RenaeCollects or Sephazon, but they probably wouldn't be anywhere near where they are today if they hadn't gotten to know the right people. Do they still make good quality videos? Yes. Are there many other people also making good videos but not getting the subscribers? Heck yes.
But yeah. If you don't believe that buying more cards is worth it, then stop wasting your money. But if you really do like buying cards and making videos just for the sake of it, then you shouldn't worry about other people viewing your content.
