My D-85 cost nearly $10,000.00 in 1981 (equal to approx. $27,000 in today's dollars), and as Marcus said above, it was virtually impossible to gig with.
I did get a special (and nearly equally expensive), and now extremely rare, road-going version of the Electone C-605 (see below), but it still took two people to move safely.

Considering the Yamaha PS-6100, (the TOTL of it's day, and having 40 styles) cost around $2000 back then and would be around $5300 in today's money, the price of our new TOTL arrangers with all the oodles of sounds and styles seems to be pretty fair.
A musical instrument is one thing I don't mind spending extra for to get the best for my needs.
It's not even a really expensive hobby for home players. You see amateur golfers paying a fortune for just one club, not to mention fees etc.
Ian