Yes but is it matter if entire computer is 2x expensive?
Anecdote: In Japan, SanDisk sells "genuine" SD cards extremely expensive (about x3-x7 for US price). Importing SD cards from US (or buy from local importer, it's common) is makes sense even though it has no warranty.
Things are a bit different if you are running IT for a large organization instead of buying your own computer though.
Generally speaking Amazon is not going to have 1000 of a specific computer part in a 2-hour delivery window. You could order different parts but then you now have increasing numbers of variations of setups and you don‘t want to be fixing lots of small unrelated problems than a widespread issue which has the same fix all the time.
And for corporations it is better to have the cost paid for upfront; it is expensive, and hard to get approvals for unexpected budget items.