Do you calculate your product cost including all these fees, or do you just look at the commission percentage?
here's the thing - marketplaces really are getting more expensive, but it's risky to drop them completely. your own website takes months to gain traction, and you get almost no traffic until you actually spend money on ads. it becomes a catch-22: no customers, no money for promotion. marketplaces give you a ready-made audience, even if they do charge for it.
better to think about how to offset the price increase instead. you can recalculate your cost and bump up prices a bit - customers are willing to pay more for convenience. or focus on products with good margins and ditch the unprofitable ones. third option - check out other platforms (Yandex.Market, Avito for B2B, your own social media channels) so you're not stuck depending on just two. mixing different sales channels is cheaper and safer than putting all your eggs in one basket. and yeah, your own website makes sense, but as a supplement, not a replacement.