When a SE wind kicks up and blows into the night in the heat of summer. Many times along the sides of jetties, rigged eels out produce live because they don't hide and are easier to keep in the strike zone deeper in the water column.

Pros
Can be carried easily when plugging
Can be reused
Easier to carry
Smaller ones deadly when fish are on sand eels and finicky

Cons
Getting good tin eel heads
Knowing how kill and rig properly
Knowing how to brine and store so they last for a year with out freezing.

IMO from land or when jettie hopping rigged are the way to go. Live in some cases are an easy way out kinda like snagging bunker.

Then again, properly riggged sluggo's catch good, sometimes better than real rigged eels with no mess.

Either way it's all in the rigging.