Vintage Conrac Color Broadcast Monitor and Tuner

I have a vintage Conrac color "Air" broadcast monitor. Model CY817/ModG Type TM27BC RCA. Manufactured by Conrac Division Olinda CA. Also have a Conrac Tuner Model AV 82E. Both items have been carefully stored for years, but worked perfectly when last used as my home tv set (approx. 1987). Many new tubes were installed at that time. Do any of the experts on this list think there is value in these items?