I suppose it would depend on the condition.
My wife sent this to me on Facebook
How To Make A Fire Pit for Around $50.
Materials needed:
Weber Smokey Joe portable charcoal grill or equivalent 14" diameter grill. ($30 new. )
http://amzn.to/1brqe5S4 sections of 14" inside diameter concrete tree ring ($2 to $3 each = $8 to $12 total)
6 sections of 24" inside diameter concrete tree ring ($2 to $3 each = $12 to $18 total)
2 cubic feet of small stones, pebbles, road gravel or decorative rock ($0 to $20 depending on style)
Total cost around $50.
Click here for full instructions:
http://bit.ly/17nlXLG