Usually they're being arseholes, wanting to make themselves feel better about the card debt and carbon footprint they're amassing flying back and forth to wherever. Sometimes they really are just travel rats, the sort that derive their primary pleasures from the act itself and genuinely wonder at the sight of such a stationary existence But not very often.
Never apologise for being happy in your own little orbit without reference to convention. Never allow other people to diminish or dissuade you from your constructive pursuits. A lot of people will want you to think you're just too much of a freak to ever find or deserve contentment and/or try to blank what you've achieved. Their disparagement says far more about their situation than your own.
The roses aren't really out yet. Another week or so. Enjoy your All Hallows.