What does the future of op shops look like?

Second-hand stores specialising in high-end products are popping up all over Australia, along with an explosion in the populariuty of online re-selling platforms like Depop and Vinted. At the same time, the standard op-shopping experience is becoming supersized too, with the US giant Savers expanding its footprint in Australia.So where does this leave the small charity shops that rely on donations to raise funds?