Its wrong if you gamble more money than you can afford to loose, or if it takes you lot of hours of your live. If not, if you only play for fun and you only play with small amounts, i don't see any big problem with it.
And now most gambler do that, Waste a lot of money to place a bet without think of any risk. So gamblin is tottaly wrong.
Waste of money and take your times so much.