I would also recommend checking out the ‘refurb’ imacs. You will save ~10-15%. I have purchased Apple refurb MAC’s and can’t tell the difference from new.
Another option would be an Apple ‘epp’ store. i.e. if you’re a government worker or perhaps you work for a company that has ‘epp’ access. Either epp or refurb will save you some bucks.
cheers
JohnG