This is the way.
Many tried to emulate Star Wars, as with Battlestar Galactica, Buck Rogers in the 25th Century or Flash Gordon (1980), but nobody could match it.
A lightning in a bottle moment for Lucas. He couldn't even match it when he made his Prequel Trilogy.
The sci-fi films of that period that did leave a lasting impact (and weren't from the already established Star Trek) came at it from a different angle, such as Alien, Blade Runner or Mad Max.
There's one film in the Star Wars mould that I still have a soft spot for - Spacehunter: Adventures in the Forbidden Zone. It was more Star Wars meets Mad Max though.