Would you say its more than even say 50 max? There are over 2k cryptos. Most are worth nothing. But how many are actually worth something?
There are no definite numbers that can mention the quality of the price of an altcoin. But my calculations in private may only have 1 percent Altcoin that has the quality to last for a long time. Most only a shitcoin is lost quickly and ultimately has no value. We cannot avoid this because indeed if an altcoin wants to survive the coin must have a full support from the developers. Without strong support from the team, the altcoin will disappear so quickly.