There is a market for raw cards. Those people like to buy non graded cards and send them in for grading themselves. If its not worth sending in, you can always resale it. I was one of them lol. One card I regret not buying raw when it was low was the 2018 Topps Series 2 Ronald Acuna Jr bat down. At the time, I thought I could pull one out of a pack, but never did. Now prices are crazy
But yes, do your best to grade the card yourself before sending it in and getting it slabbed up. Like is the photo perfectly centered, any soft corners or dings, and paint chips on the edges, and are there any scratches or bumps on it. Also, it depends on who is grading your cards. Your opinion on what a 10 is is different than what the grader think is a 10. I have had cards that should be 9 ended up being 10s and what should be 10s end up being 9s and lower. For that very reason, ALWAYS buy the card and not the grade. If your trying to send cards in from the junk wax era and trying to get a 10 on them, good luck with that lol.
Man, I still got seven boxes for mlb 2018 Topps Chrome update and 4 boxes of 2018 Topps Update. I got the itch to open it but prices have really gone up on these boxes. I think prices will continue to climb.