The answer to any question like this is always, "It depends." First, we don't know what you would consider "worth it." Second, if you are only placing your project on the Chrome store then, not matter if you are selling or getting ad income, you are limiting your income. In any case, my humble suggestion would be to place a free ad supported version and a premium paid version to max your income. You will get far more downloads on the f2p version and if people like it enough that they are willing to pay to be rid of the ads, you will get a little added income.
hm... i like that free and premium idea
If your game is high quality, and visually appealing, then it would probably be worth it, otherwise, you won't get many sales for a low quality game.
Your typical average quality game would be under a dollar, typically 99 c.
Mind showing us a preview or link us your game?
My new game is in early stage of development.. but anyway, I don't intend to make 'visually stunning graphics'.
I'll make it as interesting as I can.
Thanks for the tips