We all eventually have our " Why even bother with PSA 10s? " moment. Some of us chose to explore lower grades. Others just learn to buy the label and not worry about the card as much. Some get really strict about what they keep in their collection. I think most people end up doing a combination of the above.
You could also try different companies but my opinion is that this is an inherent reality of human-based grading and not specific to PSA only