Starting to see murmurs that GW has reduced the level of stock they hold on many key items, down to 0 - whereas previously under their tock regime, 1 was the minimum.
This covers codexes and many 'core' essential items (to play 40K in 7th edition)...
At the same time, I can't see a 'bitz' tab on the website, although if you search for 'jump packs' you can still buy them separately.
Moves afoot?