Ive been smoking weed for the past 10 years on a daily basis. here's my input.
Casual smoking should be fun , entertaining, like, getting high with friends to do something, watch a movie, hang out have fun.
Its a lot less fun when it becomes more than just that fun enhancement.
when you need to smoke to go to sleep, when you need to smoke to have appetitite, or any sorts of joy.
To me now, smoking weed is the first i do when i get off work, its the first thing i do before anything or else everything sucks.
Its not fun anymore, its just to make my life a little less miserable.
Cost a shit load of money, depends on your plugs or where you live ( here its 200 an ounce of OK weed )
Recreatively; go for it
As a life style; avoid at all cost