You'll be unsurprised to hear I find this ridiculous :p
Though I also would like to add to it
Harvester Boots, from an early Westfall quest chain, have 7 crit at 19 ilvl, 10 crit at 25 ilvl, and a whopping 12 crit at 31 ilvl. Even if they don't upgrade, they have more crit than your current...