that sounds like a great idea... not too skewed but ever so slightly skewed to early-bird tickets... so say the first 50 tickets are 0.22 btc and then 0.25 btc after that.
Hmmm...i think that would be worth a try! But i would say 0.2BTC and 0.25BTC to make that gap a bit bigger or even triple steps 0.15, 0.2, 0.25BTC. Maybe also buy signature space for advertisement to get more attention on the lottery.But most important..... this time, I will win!
edit:
bitlotto, in your monthly round threads, you could also add links to comments or threads where people said that they did win (on the assumption that not every winner will stay anonymous on this forum). This could gain some trust too...