Eating well on a plane? It’s possible, but it will cost you.While plane food is notoriously bad (though some dishes are better than others), spending a few extra thousand dollars can make all the difference.We looked at the in-flight meals served on Business and on Economy Class on eight different airlines to see just how different dishes are.Worth it or not? You decide.UNITED AIRLINES: Economy Class(Flickr/Takaokun) As the man who posted this picture put it, “meh.”UNITED AIRLINES: Business Class(Flickr/Alan Light)Not sure what’s up with all that cutlery, but that salmon sure looks good.SINGAPORE AIR: Economy Class(Flickr/Jonom1) Is this photo blurry? Or is…