[janosdebugs]

You produce the content and provide the marketing. They provide almost everything else for you: the storefront, the billing, the invoicing, charging sales tax/VAT, etc. If you wanted to do it yourself, you'd be in for quite a lot of work, even if you happened to host your own software.

[specialist]

Granted.

Is charging 30% fair?

[janosdebugs]

That depends on how much you value your time you would otherwise spend dealing with a storefront. A lot of creators on Gumroad are relatively small-time, so to them it's probably totally worth it since they would have to spend a disproportionate amount of time dealing with things they are not very good at. I'm quite good with servers, but I'd also have a hard time justifying the time spent on maintaining and updating a webshop software that deals with all the things required. If I was selling 3D assets, I'd pick one of the many fab sites over hosting my own anytime.

Another point to make is the added visibility. ArtStation for example is quite prominent in the art / 3D world, whereas Steam is unavoidable as an indie dev. Itch.io takes a much lower cut, but it doesn't bring in even close to the amount of viewers as Steam does.

[d--b]

Exactly. it's not fair in the sense that platform pricing is not set by an "efficient free market". What you pay for is not the features, it's the visibility. So the pricing of gumroad/apple store/etc is way above their operating costs.

[janosdebugs]

I'd look at it differently: currently running a business, me and my wife are spending a lot more than 30% of our time on non-core activities. If a service would reliably take a chunk of that off of our shoulders, it would absolutely be worth the commission. Especially since there are no fixed costs, no income = no costs.

[specialist]

Thanks for engaging my question.

I now realize I should have been asking if 30% is "reasonable".

For you, absolutely, and I appreciate your explanations.