A Mac mini is limited to 16 GB RAM, which differentiates it quite a bit from the 27" iMac.
(And pricing out a mini at 16/512 plus display gets me to $2700, which I guess is a ‘similar region’ but still nearly 20% more)
Maybe, but they told Ars Technica that the 27" was EOL, which suggests they did see it as distinct from the 24".