Don't try to socket those upgraded cracked or low quality items. You'll be very disappointed.
Well it depends what you wanna roll
For a bunch of items it helps to repair a cracked one cuz their lower amount of socket happens to be what you need
Armors still roll 3os at ilvl 1 (unless restricted by their natural cap)
Same with shields and auric shields, which can be useful to roll the early RWs but also dream/dragon
Staves still roll up to 5os, which guarantee 5 or 4 os depending on bases to roll cta/memory/insight
Axes still roll 4os, for uhh... oath I guess haha