I've read a few posts from people selling in the 70's who all seeem to concur that actually the Linn LP12 / Ariston RD11 were excellent turntables when they came out and that they floored most of the competition for build and sound quality at the time.
A lot of the dealers say they weren't bullied into selling LP12's but Linn were just better for build, servicing, publicity, supply and quality control compared to other manufacturers in the same or even lower price category.
LP12's became a 'must have' for many people despite the HiFi press also giving great reviews to Systemdek, Thorens, Rega, Technics, JVC, Denon, etc
I've owned both Linn & Ariston and a number of other belt drives / suspended decks and many are excellent still. The Pink Triangle turntables are fantastic sounding TT's and possibly my favourite but I sold mine because the PT electronics and bearings are just too delicate for my liking.
In the 70's tinternet didn't exist and the DIY / aftermarket industry I imagine just wasn't as widespread or accessible as it is now.
It seems that Idlers like Garrards and particularly Goldring Lencos are so popular because they can be upgraded and tweaked and knowledge of what to do and how to do it comes almost exclusivley from the interweb.
The point I am meandering along to try and make is similar to others in that for quite a while Linn's sold well because they sounded better, were easier to get hold of and had better support.
The MK2 SL1200/1210's & the like from Technics weren't around until 1980 and the other japanese DD's of quality were not widely available in the same numbers as British belt drives.
By the time people caught on that Linn's were not the dogs CD was taking over and had it not been for the DJ market then the SL12**'s would have died out a long time ago. If it wasn't for the tinternet in the last few years then many people would still discount them as DJ decks and not HiFi at all.
From the mid 80's onwards most manufacturers started making poorer quality decks and as we know many have now gone bust.
To be honest if my choices were mainly between a lightweight mass produced plastic DD or a more solidly built belt drive I'd go for the belt drive anyday and I would recommend the same to anyone.
Its only because I've tried 40 odd decks in the last 5 years that I've gone for a Technics SL1210 / SL7 & eventually I'll have an SP10 too.
Does that make sense?
Jason
Technics SP10,(Jelco)LAD Tonearm,Pickering XV15/625e,Herbie's mat; Technics Sl1210 Mk5/Mission 774SM/DL160; Techncs SL1210/Ortofon VMS20eMKII;Technics SL1210Mk2, Jelco(LAD) tonearm, Nagaoka MP20, Platter matter; Technics SL7, P22
Other Carts:
AT120e, AT440MLa, AT110e,Goldring 1****,
2X Marantz CD5400
marantz PM7300,Rotel RA960 BX; Cambridge Audio 640P X 2
Wharfedale 9.1; Tannoy Mercury F1.