For us slightly hard of seeing, the QNH values on the TAPs (The ones in BOLD) are more easy to see than the not-so-highlighted HAT/HAA figures.
You want more reasons??
Vigilant Spacey, When you operate from your GA airfield with QFE, how far above you is the 'local' airway, and at what point approaching the airfield does your buddy who is arriving set the QFE in order to determine how much separation he/she has with you while you are going around from the base turn point?.
If you really want to know how high off the ground you are in the flare - get a Rad-Alt!