while 25 sheets of PL 100 is $109.99 at JandCPhoto.
I think you need to check the JandC Photography website again. Looking at the website, tells me that the Efke is packaged as a 50 sheet box. There by making it about $54.99 per 25. That compares favorably to the BPF 200 from the Bostick and Sullivan company.
I have no interest in JandC Photography other than wanting to see the company succeed.