rewards in crypto can't be compared with classical lottery rewards (Powerball: $1.586 billion (Jan. 13, 2016; winning tickets sold in California, Florida and Tennessee), Mega Millions: $1.537 billion (Oct. 23, 2018; South Carolina)), but at least I like when I have more chances to take at least something, than meaningless chances to win millions!
Yeah, there are rewards differences since we don't always have a winner in the (true) lottery (it's by design, raffle vs lottery, not about the scaling problem). It makes the crappy odds even crappier, as you said, lol, and that's the downside when we get to choose the number. Not all numbers were taken, and the draws were rand between 0 - total number space.
Picking winners in a typical raffle by rand between 0 - sold tickets is more efficient IMO, so I can't complain about the current "lottery" in the crypto world. I like it!