If a “special offer” is always discounted and presuming a discounted offer is always “special” because of the discount, I fail to see the difference between the two so why not just one “Special Discounted Offer” category? There doesn’t seem to be a definable difference between the two or am I just not seeing whatever the answer is?
Yes, I have too much time think 
I just think of them as “Permanent” discounts on some current or future items (e.g. permanent discount for those that bought deluxe/premium/premium deluxe versions), or “temporary” discounts for a specific sale period.
Regards
Semantics…. Why not just call it rollback? LOL. No please don’t do that!
I like that the aircraft class packs for Reno went from $9.99 on the weekend to $14.99 on Monday to $19.99 Tuesday.
Especially since Reno air racing is no more. 