I totally support the idea. Reducing the fee would be a great move (+ good publicity, remember UE4 becoming free?) that would attract a lot of new developers to create on Marketplace… And richer Marketplace would attract more devs to UE4 itself. That’s how the Marketplace could grow to a bigger scale, following this ‘win-win-win’ [MarketplaceDevs-UE4Devs-Epic] strategy.