Importance of supply and unit price of cryptocurrencies

Hello everyone and especially those who have just entered this world.
As I see more and more messages from people a little lost with the amount of supply of the coins / price and its true importance I have encouraged to write this topic.
Phrases like the following:

This currency has a Supply of 10,000,000,000,000. Can there really be people recommending it?
This coin is cheap, worth only € 0.01
The supply or the price separately mean nothing.
Example. Would you buy grains of sand from the beach at € 0.01? And a Porsche 911 for € 1000?
Which is expensive and which is cheap?

The value of a project is measured with the Market Cap: https://coinmarketcap.com/7 and is the result of multiplying Supply and Unit price. And from there calculate how much could be worth in the future.

It is important to look at other aspects such as how many units can be released in the future (Max Supply). Who is in possession of the tokens ...

That's why I find the new fashion of looking for cheap coins and resuscitating dead projects absurd. Great care to those who enter these currencies, can be valid if the objective is only speculate (Since a lot of money is coming from people who are guided by these erroneous price patterns and these currencies are currently going up like crazy) but you have to be very Attentive to the time to leave to not lose the investment.

For these reasons I would never recommend coins that I see recommended everywhere as: XRP or DOGE
Coins that I would recommend for fundamentals and because they have the capacity to increase their Marketcap depending on their future value: IOTA, WTC or WAVES among my favorites.