The funny thing is that the stars of The Good Life were very much Richard Briers and Felicity Kendall (who had one of the cutest backsides in jeans ever on TV) with Eddington and Keith very much the straight men, side kicks.
After the show it was expected that Kendall and Briers would be the superstars but their careers very much peaked with The Good Life. Keith however went on to stardom in To The Manor Born, which had audiences of 20 million per episode (at the time the population of the UK would have been about 55 million) and of course Eddington went on to beat everyone with his masterful performances in Yes Minister and Prime Minister.
The second bananas are often the more interesting characters, particularly if the actors really make the role their own. IIRC, "Are You Being Served?" was something of a Trevor Bannister vehicle, but it ended up being very much an ensemble show that was more centered around John Inman. (I can't recall where I heard that, so I may be wrong.)
Now that you've mentioned it, it is possible that Felicity's backside made my dad such a fan of "The Good Neighbors" back when it ran on our local public television station.
Mr. niteowl77