For what it's worth... Personally, I would rarely consider paying $300 for a hotel room anywhere, never mind a Days Inn in Atlantic City!

Have you considered just making it a day trip? Seriously, it's not that far of a drive & honestly, again in my opinion at least, AC isn't all it's cracked up to be.

Anyway, just noting that you said you've never been before, I think you should brace yourself for at least a little disappointment.