Originally notified of this by flexo786 in a separate thread so thanks due there. Comet are clearing these GBA Micros at £20, instore pickup only. My local didn't have in stock on Saturday but they checked the system and had some in Kendal. I was able to pay for it at my local and pick it up in Kendal. They only had pink consoles in Kendal but not limited to that colour nationwide. Be quick because the staff have been buying. PHONE BEFORE MAKING A TRIP AS STOCK IS LIMITED.
NOTE: Some stores have the silver version at £14.99 (see comments for more info.)