User blog comment:Alartan/Swiftness or Mobility boots?/@comment-25254389-20150206005805

Boots of mobility are cheap, but bad outside of a niche.

They have the one boot effect that doesnt help at all during combat which should be 75-90% of the match. they grant no protection against any attacks and dont make you do more damage.

Ninja Tabi, reduce auto attack damage by 10%

Ionian Boots, reduce cooldown by 15%

Berserker greaves, +25% base attack speed

Sorceror's shoes, 15magic penetration

Mercury's Treads, reduces crowd control by 35%, +25magic resistance

And the Boots of Switfness are far more reliable than the Boots of Mobility. they dont get turned off whenever you fight which again should be most of the match.