I'd revise it to "Don't spend money on advertising for you iOS - even if you wanted to, the price has multiplied many times over for the last couple of years".

I'd revise it to "Don't spend money on advertising for you iOS - even if you wanted to, the price has multiplied many times over for the last couple of years". I found it very meagre on stats and arguments, and I think what was most interesting to me: whether there's a difference to companies and apps with traction and those without. I would never pay for ads on a product that hasn't gained any traction, users nor fans, but I wouldn't mind paying for some reddit ads later on. As long as you consider buying ads to be noticed instead of buying ads to get people to like you, I think it's still open for discussion.