Yes, what is fantastic is that this thread has been going on for a while, and there MUST be someone from MS listening.
But no answer provided.
I am quite annoyed too.
I'm one of the people that bought the phone considering offline maps an important feature.
I travel every week to a different country, I can't possibly store all the maps on the phone memory, and I can't possibly deleted and install a new map every week either!
I bought a 32 Gb SD for this purpose, and it was going very well.
And now I've lost this possibility.
Not to say that using maps online, apart from roaming charges, is sometimes slow, consumes a lot of battery, and when you lose signal you have no indications.
Quite annoyed.
When my contract ends I will move to Android.
I see no reason to stay with WP, considering also that my bank doesn't make an app for WP, etc etc...