How is it if you put the chain around it?? With the chain properly tensioned, how far away from the sprocket can you pull it??
IMO, its more the chain and sprocket at a pair and whether they are worn out as a pair.
In practicle terms , if I had a $150 DID super chain then I would toss the sprocket. If I had a Brand X that my neighbor gave me in return for a full gas can, I would put it on the bike and hope for the best.