Winchester marked every Model 94, made in 1994 on the receivers "1894-1994", so none of them are "Anniversary" rifles in the sense that they are collectible or commemoratives.
They are just "shooters", that happened to be made that year, and should be valued according to condition, config, & local/regional demand - just like any other Model 94 from the year before or after that.
In today's market, $300 is a very reasonable price to pay for any Model 94 in good condition.
There'll always be someone, somewhere, who "got one just like it" for only half, etc, etc - but that's not the norm.