They do.
People should play chess for $$$

OTB only !
1. More interesting
2. More adrenaline
3. Asparation to learn the game (faster, better, deeper etc..)
4.You will get paid for your hard work
5.Business people will play chess not just kids
6.More people will play chess instead of casinos (in which case it's beneficiary for them even if they loose they will learn something)
Places like coffee shops, restaurants, parks, etc....
Fortunately, chess is interesting enough in itself that one doesn't need money at stake to make it interesting.

If you are doing a hobby solely for the money there is something wrong.
I think I said it another thread, if you want sharp, interesting play then just look at Blitz and Rapid championships.
Feel free to bet money in your chess games, for me it would just make losing games painful when it should be a learning experience, not a traumatic event.
OTB only !
1. More interesting
2. More adrenaline
3. Asparation to learn the game (faster, better, deeper etc..)
4.You will get paid for your hard work
5.Business people will play chess not just kids
6.More people will play chess instead of casinos (in which case it's beneficiary for them even if they loose they will learn something)
Places like coffee shops, restaurants, parks, etc....