Valuations are set by the current value of the company and the projected outcome. Lower costs to launch and iterate actually increase the likelihood of success

Valuations are set by the current value of the company and the projected outcome. Lower costs to launch and iterate actually increase the likelihood of success, as well as mean that net margins can be higher than if you had to invest in significant infrastructure. The fact that you don't need very much money and will be able to try all kinds of things on a shoestring budget is exactly why valuations are so high. Since VCs still want the traditional 20-40% of companies, they give them more money than they need out of their own desire to take a big stake - not because the valuation is out of whack. Said another way, the less a company needs your money, the more you have to pay to get in.