I think even 1000$ wagered/ticket is not enough. This promo runs 4 months, what good is it to draw from appox. 5 million tickets. I have around 150 tickets by now and already know I have 0 chance to win anything. This promo is running way too long in my eyes.
It is good as it is long term promotion, because as it is long term promotion they are able to attract their user, and 1000$ is not very low money. So, I think this promotion is enough good and it should run for more long time.
1000 wagered on a longer period of time also allows you to get at least one ticket when you have that much time. Obviously if you do not play with a decent amount you will never reach it, people who wager under 1 dollar will have to play thousands of times to reach there, but if you are playing even with 1 dollar per bet, you need just 1000 bets to get a ticket and when the time is such a long period you will get to play that much eventually. Think of it like this, 1% is the house edge and 1% of 1000 dollars is 10 dollars, so the ticket for lambo is 10 dollars.
Obviously it is not like that and you gamble, maybe you will both earn money and ticket together or maybe you will be unlucky and lose 1000 dollars as a whole and only get ticket, but in the end average is 10 dollars per ticket for a lambo and I find it understandable.