Great post, P_7878. Luckily I have flown in both, the B707 and the A340. Back in the 1980s, when I lived and worked in Lahore, Pakistan, the PIA 707 brought me from Lahore to Karachi (and back to Lahore), where I caught an LH flight to Germany. And the LH A340 I was able to enjoy a couple of times crossing the Atlantic. No alcohol on the PIA flights of course, but lovely champagne on the LH A340 😃
Btw, the son of a friend of mine is captain on the LH A340-600 and flies regularly into Bejing, Seoul and Hong Kong.