As of now many people seem to stop at RS9 as there isn’t much incentive to run 10+ for arts. I only run 10s for rich asteroids. If higher levels provided more blueprints I’d be inclined to run them.
There aren’t any miner or transport mods past 9 and the mods that are past 9s aren’t inherently necessary to be successful and have fun in the game.
If influence points provided a bonus or reward at some level than that could incentivize pushing it higher.
All the rs are kinda set up to take one main and a few lowers at some point till you hit the double mark. Yes high level players got boned on prints I lost ~25% of my cap. Players not stuck in the bad spot during update will all have the chance to carry 2x main level if they want