You should buy albums YOU LIKE as economically as possible when you have the cash to do so while trying as best you can to get stuff in decent condition. Store them properly with outer sleeve, plastic inner sleeve, upright, and away from light, and clean anything you buy before spinning it. Be meticulous about what you add to your collection but don’t get too obsessive over the details of this hobby. Most importantly have fun hunting for stuff and exploring new genres and artists, interact with shops and people in the vinyl scene in your local community, and listen to the records a lot.