Yes, during the height when bitcoin fees are high, even gamblers are looking for some payment options. Others uses altcoin instead of bitcoin that time because of the fees. But not to burst the bubble to the OP, I think majority here, please correct me if I'm wrong haven't had explored LN payment scheme. Of course, this can change overtime, when investors or even ordinary users of bitcoin might really see the advantage of LN, (fast and fees are low). But most are old and traditional way of using our bitcoin, a bitcoin address for deposit and withdrawals.