Maybe or maybe not. It's less about the raw number of miles/points, but more on how they would be used.

Personally, I value most non co-branded travel rewards credit cards ahead, as they would have more flexibility with transfer partners; whereas in the case of co-branded credit cards such as Delta AMEX, you would be limited to Delta and Skyteam redemption. The other variable is Delta does not have a fixed award chart, so potentially those 75K bonus could be enough for two tickets, or not enough for one.