This 0.8mm ENIG black silk panel cost me $35 for 10pcs, with ten different designs. At JLCPCB, it’s 10 times more expensive to order these PCBs separately. Just like with single-design panels ...

One of them for me used to be decreasing prices at JLCPCB, but as they ramped prices up over the years, this benefit has faded – another PCB fabs might still give lower prices for panels for you ...