Exactly $369 for my 4001 (including the hardcase) at SamAsh on 48th back in the end of '78. It was a week before Christmas, I paid half, the other half was my gift from my parents. It was still wrapped in craft paper inside the case when they opened it in the store. The only downside was I had to suffer through dinner while it sat in the trunk during a cold winter night.
Considering entry level basses (mine was a Sekova J copy) were going for at least $150 back them, a Rick was not a huge investment and quite a few guys I knew had them. A buddy picked up a fretless for around $500 and it was considered outrageous.
I dumped mine with no hesitation when I went fretless (hate the feel of the fretless Rick) thinking they'd be easy to get again new if necessary.
Pretty stupid, I know. When I recently got back into playing, my first instinct was to grab a Rick, until I saw what the deal is now.