It's like that 80's phrase. "Wherever you go... There you are". You can't escape, (If travel is some means of doing so) your hang-up's and personal foibles.

But I like Mark Twins quote on travel.

"Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime."

Yeah, the grass is always greener on the other side...except when you have to mow it.  Similar thought process.  There are several related phrases.  You don't know what you have until you lose it and so on.  I agree with nearly all such thoughts.  I like to travel..but not to get away from anything, but instead to learn about new places and things.  Home is always the best place for me.