OK...
Let's say I want to make "serious" money scalping.
I need 10 books at least, with 2 max bets a pop, which is 600K
If I am lucky I get a 5 cent scalp, which for our purposes here wins 50% of the time (should be less, since if the favorite wins, you will only make your money back and break even), let's say at 2.5 cents per dollar on average.
If you max out your bet you place wagers at 30K + 30K and half of the time you will win 750 bucks for an average of $375 per scalp.
In order to double my 600K I need to find 1600 scalps. This would be 3 years and 200K a year which is VERY good, if you can find 500 scalps per year.
I actually believe it'll hit along the lines of 33% and an average of 3 cents per dollar, which would require me to find 6000 scalps... Let's say you find 500 scalps a year and that's 12 years, or $50,000/year...
This is nothing to sneeze at of course, especially since it's "free" money, but that's one hell of a big purse to have tied up in sportsbooks. Not to mention, that if you do 1 (one) misstake you are in the hole for 30-60K which would take a year to recover from.
ETA: spelling and crap...