I like the idea, and have thoughts & questions.
First question is why Hive instead of HBD. This is a great opportunity to showcase our stable coin.
Next, I like the idea of giving a free ticket with a low chance of winning vs giving cash back. It's not really a lotto if the ticket was free in the end, every time.

I'm pulling this next part out of my ass as it somehow also rolls off the top of my head, but...

What if staking x tickets gets a free ticket each week at a 1% chance of winning, while buying tickets gets increased odds, and buying via recurring payments get best odds. That way when I don't win anything after a few weeks I'll still have that free ticket roll in every week to remind me I get better odds if I go snatch a few off the market real quick before the next drawing.