So as the title says, All Star Superman Sale is at Comixology. All 12 digital issues for $12.

Just wanted to know if this sale is something that is very rare that I should get it, or if its common and/or possible to track physical copies at similar prices.

I heard a lot of positives about the run so I'm quite interested to give Grant and Superman one last chance after getting slightly burnt from his New 52 Action Comics run.

This is old, but bump. My comic ship has all 12 for 20 bucks, anyone else see prices like this?

I think it is a good price. Even the best softcover edition with all the 12 issues is at least 20 $ so I would say go for it.