My impression is (and I could be wrong) that single-in-line packages (SIP) were never popular in the West (relative to DIPs anyway), while they saw more adoption in Japan and in Asia in general. I'm saying this based on how I see the current state of the market, in which one can still find through-hole SIPs from Japanese manufacturers, but they seem to have practically disappeared from the Western manufacturers' portfolios, if they were even present in those. (Now I know that the through-hole technology in general is on the decline, but let's not get too far afield.)
It seems difficult to find any sort of written history on this matter, i.e. how prevalent SIPs were in various parts of the world over time, so anecdotal evidence based on personal experiences would be appreciated too.