by that I am assuming you mean invest my coins the first couple of weeks to start out the site correct? I planned on doing this already and I will work on changing my lottery from a normal one to a mega millions style once since it seems to never have been done.
Ok but if you were a customer what would you like?
The way Mega Millions works is they put up a jackpot BEFORE anyone has paid them any money. Statistically, Mega Millions will come out ahead on the jackpot, but that doesn't always happen. Therefore, you need funds to put up a sizeable jackpot, and you need funds to replace that jackpot if someone happens to win it quickly before you generate enough ticket sales to pay for it. And heck, you should probably have funds to replace the jackpot twice, just in case.
So, if you can put up a sizeable jackpot, can replace the jackpot at least twice with your own funds without any help from ticket sales, and can come up with a way to prove that you aren't manipulating the results (i.e., base it on the blockchain with a verifiable result posted prior to the drawing), then I think you might have a chance at building a successful lottery.