interesting! Looked up some old datapoints on wikipedia

Apple Lisa 1983 $9,995 ($25,143 in 2018 dollars)

Apple Macintosh 128k 1/24/84 $2,495 ($6,000 in 2018 dollars)

Macintosh II 3/2/87 $5,498 ($12,125 in 2018)

Next Cube 9/18/90 $10,000 ($19,177 in 2018 dollars)