That's not an investment, that's a job.
you think bj card counting is not an investment? Don Schelsinger, a formal Morgan Stanley executive, calculated a typical counter can win about $50 an hour with $40,000 bankroll, which is $300 a day (6 hours), $6,000 a month (20 days), $72,000 a year, a 180% return on $40,000 bankroll. Why you think it is delusional?
First, I must say that blackjack can be an investment that will get a good return for people with limited funds. I do it myself with money that isn't part of my "regular" investment plan. However, what you describe is more than a simple monetary investment, it is a job. 1440 hours of playing time a year means many more non-productive hours spent traveling and scouting games. It is not only an investment of money, it is a major investment of your time. It is also unrealistic, for more reasons than one could say in a relatively short post. Put briefly, it would be difficult to find enough good games to play in such a steady fashion, let alone enough casinos that would let you play in that way.
There are limits to what one can earn in blackjack. No casino is going to let you come in and hammer them with bets measuring in the thousands of dollars, which is what you would have to do to earn what you could earn with a large investment portfolio that was in the seven figure or greater range.
When one considers those limits, one may find that a regular job can give him a greater return for his investment of time than he can get with blackjack, with very little risk involved. $72K is not much of a salary, especially when one considers the fact that no benefits like health care, vacation and sick leave are earned on top of the $72K. Many of us can and do make far more than that in our day jobs.
There are ways to make more money playing blackjack. There are ways to make more money with advantage play in other games. But the notion of simply sitting at a blackjack table six hours a day, five days a week, 52 weeks a year, is not a realistic one.