Macintosh was somewhat cheap at release time - $2495 for graphical computer, albeit very limited in many ways. In fact, probably it's major "groundbreaking" aspect was that it was cheap - compared to nearly 10x more expensive graphical workstations used in professional settings.
A standalone Sun-2/120, with cpu, 1M of memory, 42MB hard drive, tape interface, ethernet interface and software, cost $16300 in 1984 dollars, over 45k today.
