Weber Performer 22 In. or Weber Smokey mountain as supplement to Searwood 600.

I bought the searwood 600 to have a fairly universal grill but a local hardware store is clearance weber grills so looking to pick up one of these as a supplement to my searwood:

Options: Weber Performer 22 In. - $137 Weber Smokey Mountain Cooker 18 In. - $200

Thoughts on which would be the most versatile supplement to my searwood?