I just want beer in my mouth, not in a can. What good does it do in a can?
Although - taking about changes in canning technology, the new word on the block are these new-fangled "pression-cans" (their name in French) which have some thing they do that means it comes out of the can as if poured from a barrel-line pump in a bar.
Some of these need ionizer machines to work, others don't.