Of the sharpest sportsbetting pros and BMs that I've seen, the majority of the ones that dabble in horses and Poker, do so mostly as way of amusing themselves with profits generated by the sharps/wiseguys sportsbetting profits, plus the BMs pen-to-pad square money, and usually for much smaller plays ,as outside of the fewer larger plays or tipped spot-plays via movers(best source for a true horse move in LV), and larger stateside offices in years past, or lastly The Derby and Breeder's Cup weekends..it is done with lowered expectancy and play size
But of the same crowd listed above, when residing in LV, or sitting in NYC offices, or in large stateside offices..the danger of degeneracy doubles..as sheer exposure and environs create a more dangerous bait.
Tracks getting their own shows all over the big dish, and the arrival of TVG haven't done lose-handed and well-bankrolled pros and BMs any favors, as some I've known now have action on slower days that once provided fewer distractions.
Some of the same crowd have been "having a lil' more something to sweat" since the explosion of CNBC and other market shows popped up, along with the growth of day-trading.
There are some sharps that cap most everything, but specialists are where most of the connected and in-the-know crowd make their best money..all the way down to the very sport, league, city, team, race track, game,etc..it's too much for a generalist to keep up with nowadays..and burnout is always a possibility without breaks(most take 'em at the All-Star break each summer)..
Just as in the yesterdays, when for example, Pro football = Tiger, PittsJack, Baxter,etc....College Football= Computer, Doc M, Lunatic,etc...MLB = Kosher, Chip/Poker,etc...NBA=Chinaman,BB,etc....NCAA Hoops= Herbie Hoops, Buddy/Jamie,etc..it will be the same in the future with the next generation..as the names will change(and already have a bit), but the way to success in the game will remain the same(get a bread-and-butter sport, then go from there)..and he whom sits with the most and best smart-marks(Large Offshore BMs nowadays), with the largest bankrolls(BW, Spiros, H, Aussies, BB,etc..) and access to movers/beards/outs(any of the aforementioned) will win the most.