App Store 'full of zombies' as it celebrates fifth birthday
bbc.co.uk
bbc.co.uk
Realistically though, it is really hard to get some attention in the App Store nowadays, and Apple really should build some mechanism into the store to combat this.
It seems if you're not at least in the top 100 in your narrowest category, you are equally (in)visible whether you're ranked 1000 or 100000, thus only get found by a direct link from outside the app store (zero noise) or a quite explicit search (specific intent). For these, the number of other invisible apps seems irrelevant.
Put another way, if you want to be on the top lists, you're going to need promotion. Get noticed to get noticed.