I am not in the market for this, but would prefer a subscription model. Because a one time fee means the developer has to grow the sales constantly to keep rece

I am not in the market for this, but would prefer a subscription model. Because a one time fee means the developer has to grow the sales constantly to keep receiving revenues. I think that gives the wrong motivation: adding features might be prefered to solving bugs. Or just stop working on it all together because the growth has stopped.