I never feel compassionate
The only way firms can afford to give away a free pole is if they are desperate to get rid of rubbish poles or are making so much money on the larger poles they can afford to swallow the loss. To illustrate:
If you would be happy paying us £165.50 +VAT + Delivery for a 24 ft Glass Fibre X-Tel with hose, plastic gooseneck and Super-Lite brush, we would happily throw in a 9 ft Glass Fibre X-Tel with hose, plastic gooseneck and Vikan Mono-filament brush for free.
Alternatively, you could pay the standard £109.50 for the 24 ft and then pay the £56 for the 9 ft!! Which sounds better to you?