Got my Bike Friday 'Pocket Rocket' 16 years ago largely for this application (business trips with some extended tours) and it has served well in that role. The normal suitcase is a big plus for avoiding any hassles at airports and also doesn't tend to raise any questions from business associates. You can buy the trailer/suitcase separately from GreenGear, but I'd check that it'll work properly with some other model of folder before going that route. In addition to many short outings while on business trips, I've also used my Bike Friday for some extended camping tours (such as down the California coast) and a number of 100+ mile day trips