Labour Rates

Just going through the new Eliseparts website for the Honda conversions and came across this on the linked Blink site:

Labour Charges

�35 per hour - standard rate
�40 per hour - if you want to watch
�50 per hour - if you want to help

does it mean that if you want to watch they do more than if you sit in the waiting area - so have to charge more - or is that just me being cynical