While possibly valuable in electrical diagnosis USED BY A SKILLED EXPERIENCED technician, I've been amazed at the reports that say the (whatever) breaker is bad because it is warmer than others in the panel.  That it is in the middle of summer and the air conditioner breaker is identified, or some such ... a loaded breaker will be warmer than an unloaded breaker.  Remember that most residential breakers trip by thermal means ... 
Bad insulation installation, leaky windows and doors, leaky ducts ... VERY valuable ... but not what the average home inspector does.
We've several professional thermographers on the board ... perhaps they will chime in.