I get his point, 500 was just some number he said, but let´s say 600th guy or 400th guy ends up playing challengers for years, because he can earn money there and be profitable - covering cost + buying stuff like car, presents and so on, so his point was guys should try to get better and go from challengers UP to World tour, but problem is those guys without money if not talented enough have no money for coach or better equpiment, physio and so on so they are somehow limited in UPside potential
All you guys saying about how much NFL or NBA players earn are comparing apples with oranges here
NFL-NBA are rich leagues based on different system, US leagues are full of money, but with tennis tournaments there is totally different system, you have tournaments, trying to get sponsors, crowds - ticket revenue, sell TV rights and so on, than they can from this money offer prize money to players + apperance fees and cover costs - energy, empleyes and so on, it´s totally different system. comparing to US leagues with franchises and so on
For example i give you info from Slovak football league - guys can´t earn decent money either - we can compare this to guys outside top 100 playing challengers, why comparing to world richest leagues - like NA big leagues or EUR top football leagues.
How can guy earn money from playing future for example, when those futures, have no TV money, no ticket money - futures are mostly for free and have just 1 sponsor - regional sponsor, so how you can earn money playing futures or smaller challengers, when those tournaments are running in loss, just because some regional authority pay for that event, but tournament itself is generationg losses.
I still think guys outside of top 200 for example can earn money by playing smart and scheduling right - leagues in Europe like German tennis leagues and be economical, i mean guy who is playing challengers can´t expect to buy 100thousand EUR car from playing challengers, i mean can you imagine mugs being 350th in the world having half millions USD per year ? who would pay them? tennis is individual sport with different system to rich leagues
BTW you have even idea how ,,much,, money earn top athletes in athletics? all kidns of athletics - i know Usain Bolt himself in his best season had like half million from prize money, all his millions are from endorsments, so let´ say 10th best guy from athletics makes in prize money maybe less than 100th guy in tennis, so tennis is still doing good for individual sports, probably 2nd richest after golf from individiual sports