I think that is a modius, but I say that with no great certainty. Yes, I think this reverse clearly depicts Genius with a towered/turreted headdress and I would attribute the coin based on that. Both of these Coins are in very fine condition. Thank you for posting those pics of them.
I don't get the severe after purchase regret as often, and nowhere near as much as I used to, but buyer remorse does seem to be an unavoidable part of this hobby/business. I find the price paid usually plays a big factor in any remorse. Unless I'm absolutely sure I love the coin, I try to be really frugal with my purchases. One thing I do sometimes is pretend I already own the coin. I might even envision myself sitting at my desk holding the coin. Does it put a smile on my face? If it doesn't, it might be better to stay away.
I agree, look and feel makes an ordinary coin, extraordinary. I love them when they look like soft, light brown leather.