Food is expensive up in Northern Manitoba. Nicely surfaced sestertii of just about anyone are worth $80. Alexander may be the cheapest of the group but I'd not call this overpriced at $80. Condition is everything and surface condition is the difference between nice and really nice.
The coin arrived in the mail today. Here are my photos. the seller's photos show the surfaces a little more chocolaty than the coin is in hand. My photos give a better idea of what the surfaces actually look like. The surfaces are very bronze looking with almost a slight shine to them. Good detail. In all I'm very pleased.
Thanks JA. Here's also the correct attribution: Severus Alexander; AD 232 AE Sestertius, 29mm/20.4g OBV: IMP ALEXANDER PIVS AVG , Laureate bust right with draped far shoulder REV: PROVIDENTIA AVG , Providentia standing front holding two grain ears over modius and cornucopiae. (RIC 642, Cohen 503).