Sand Silos enters the battlefield tapped. You may choose not to untap Sand Silos during your untap step. At the beginning of your upkeep, if Sand Silos is tapped, put a storage counter on it. {T}, Remove any number of storage counters from Sand Silos: Add {U} for each storage counter removed this way.
Near Mint - $4.60
Lightly Played - $3.70
Moderately Played - $3.20
Heavily Played - $2.80
Damaged - $2.30
Near Mint Spanish - $4.60
Lightly Played Spanish - $3.70
Moderately Played Spanish - $3.20
Heavily Played Spanish - $2.80
Damaged Spanish - $2.30