How long do we have to wait before we can do this via CSV import? can you put a timescale on this?

It's hardly a difficult SQL query to write to say the least, we have a few thousand products, as others have said, this would take days to update pricing on.  Extremely disappointed and feeling extremely misled by QuickBooks.

I don't want a third-party add-on, in my many years' experience of this type of thing, it will have problems and cost a fortune, plus, it's not an unreasonable thing to expect from an accounts package.