Primtime Deal is nice in the fact that you often see offers above the $250,000 mark (hence the $1M top prize), whereas on the syndicated version, you rarely see offers above $100,000. That's one reason why I want the primetime version to stick around.
But I would like to see it go for the reason that every episode has in-game spoilers, which everyone knows makes the show less entertaining to watch. Is that really necessary for a game show? Absolutely not! But we've covered that before.