Well, that kind of suspicion may come in the first place to any online player's mind.
Personally, as a player largely for jackpot games when getting big enough, I take a look at two things: whether they indeed buy real tickets and whether I am supposed to claim the JACKPOT if I happen to luckily hit it.
Todd says consistently that Prime Ticket Service does buy real tickets. In that matter, I trust Todd. Then, as far as I am assured that real tickets are indeed bought, I think I don't have to be concerned about any possibility of their running away with smaller winnings, because I expect they would not run the risk of going out of business for just small amount of winnings including a few grands, in my opinion.
Then, the real concern is in order - The possibility of their running away with big money after claiming the jackpot for themselves. In that regard, Prime Ticket Service says in their homepage that they would arrange to hand in the ticket personally to the player when s/he wins a jackpot. As with some ticket-buying-service agencies I could see, if, by terms and conditions, they can legitimately claim the jackpot, that may in fact cause a big problem if and when one wins a jackpot, because now the possiblity of running away with several or possibly tens of millions as compared to several grands, would be increased significantly.
I guess many would be ready for tax-free-$76M Euro Millions drawing tomorrow. I hope you, and other members as well, to win a big prize.
Good luck!