They will exist! If you look at some of the top 10 of the lottery rounds, there are some people with millions of tickets. They could also obtained these with gambling or referrals, but there most be people that just buy it in the hope to get lucky.
Most of the people gains lottery tickets by betting. I was spending on lotteries in the past, but I stopped it as there was no positive result after buying lotteries. It was only helping to increase the percentage of free BTC bonus. Now I'm gaining free lottery tickets for my betting activity, also some lotteries from the WOF spins. I think old users rarely buy or spend big amount in the lottery, unless they have won anything from it in the past.