england for boxes in the early 80s was pretty crappy,M90s,M70s - almost none,GF777 was extremely rare,i only ever seen one on a poster as a kid,Jvc Pc5,Pc55 ,sony FH was only ever seen in high end hifi shops.. when i was with my dad in a electrical shop buying my first box in 1983,i saw "1" M90,it was a customer return,and they were selling it second hand for £199,only other boxes i saw was the common Sharp GF's eg,Sharp GF8989,575,9500,990,9797,stuff like that,and they had some Vz2000=Vz2500 but they were locked in a glass unit as they were way expensive..£299,and the home ones like the Vz3000 and Vz3510 was £499.
Anyhow,as for lasonic,conion,techsonic,discolite and all those brands of boxes,masterblaster ect.. they were never sold here at all,we got the shltty deal because we were only a small island..Booooo