My work is updating computers and I can buy one iMac of choice. I mostly surf the web, use Microsoft Office and do video conferencing.
Choices are:
2017 21.5" 3.0 ghz quad core with 16 gb ram and 1tb Fusion drive. Has Big Sur installed. Six hund dollars
Late 2013 27" 3.2 ghz, with 32gb ram and 1tb SSD drive. 14,2. This model won't upgrade past Catalina. Six fifty dollars
Choices are:
2017 21.5" 3.0 ghz quad core with 16 gb ram and 1tb Fusion drive. Has Big Sur installed. Six hund dollars
Late 2013 27" 3.2 ghz, with 32gb ram and 1tb SSD drive. 14,2. This model won't upgrade past Catalina. Six fifty dollars