The phrase 'ἐν Βοιωτοῖς ὤνιος' presents a syntactic ambiguity regarding the predicate of the adjective. While the standard construction for 'being sold' is often the genitive of price or the dative of the agent (e.g., ὤνιος τινί), here the preposition 'ἐν' with the dative suggests a locative sense of 'for sale in Boeotia' or potentially a dialectal/colloquial usage specific to the comic context where the state of being available is tied directly to the location. This construction invites comparison with the more common 'ὤνιος εἰμί' or 'πωλεῖται', and the specific choice of 'ἐν' highlights the commodity's geographical origin as a defining characteristic of its market status, a rhetorical device common in Old Comedy to mock regional economic stereotypes.