It's easy to prompt some stuff into existence over a weekend. It is hard to polish it, fix bugs, have tidy UX, and so on. There's this meme going around (maybe from that Silicon Valley show?) where the grey-beard says he is valued for his taste and his conviction in that taste. This is -- fortunately or not -- reality.

Vision and taste won't get you the whole way, but they are a huge part of the equation. This is why Apple, for example, was so successful under Jobs: he had vision, and he had good taste.