Disk space on that server is at a premium.

Flair and invention were very much at a premium, suffocated by the relentless pace and often fractious nature of proceedings. The absence of James Morrison from the centre of Scotland’s midfield, the West Brom man ruled out on the morning of the game by illness, had already diminished the creative capacity of the home side in that department.

Both Ameobi and Sunderland forward Darren Bent had gone close in the early exchanges but chances were at a premium thereafter.

At a premium

Meaning

Prep_phrase