In general, this is good advice.
But it does seem there is a room glut at Heathrow right now.
It’s probably a combination of the tough times we’re seeing but I guess it’s also the fact that a number of new hotels (especially in the budget range) have recently opened in the Heathrow area.
Heathrow’s passenger numbers are either stagnant or in decline (because of the economic downturn) so there are more rooms serving fewer travellers.
The rates RoadKing obtained were good but not exceptionally so. I booked myself a night at the Sofitel for Friday Jan 9 and the online price was £89 or £102.35 including VAT. I have since checked the Edwardian and its online rate is only £55 (£63.25 including VAT).
What I found surprising is that these rates offered me flexibility. I could book when I wanted (assuming that a room was available at that price) and if my trip were to change I would be able to cancel up until the afternoon of arrival without penalty.