me and my wife used to as well, until we started realizing that sometimes it is complete madness to do so: there are of course the ecological and economical reasons, but the main reason is we figured we don't have to travel to get into nature. A couple of years ago I started hiking around the city where we live and discovered a whole wealth of beautiful nature of different kinds I never even knew was there. Which made me feel stupid and enlightened at the same time. Stupid because of not knowing it was there and being sucked into the 'you must travel at least x times a year to visit nice stuff' which lives strong amongst many people I know. Enlightened because of knowing it was just there for us to visit whenever we feel like.
We took this idea a bit further and instead of travelling abroad we set our minds on discovering all beauty around us by simply taking the bike and doing a short trip (say 20 or 30km) to an area we've never been before. It is simply amazing what we found already.
Granted, this is not for everyone, for starters because not everyone lives in an area where there actually is easy to reach countryside/rural area, but I highly suggest to look at sattelite images of the area around you, look for green spots and ask yourself if you know what they look like. And go figure it out if you don't.