I think that length really depends on the person. Some people are really autonomous and could just take off by themselves for eons, others get homesick after a week. I got homesick in Germany, but I made up for it by emailing like crazy. If I could travel with no constraints (I think that is the perameters) then I would leave tomorrow and would not come back until I have seen everything that I want to see, and don't miss anything that I have seen, and have found the ideal place to settle down. I don't really know how long that would take, so I couldn't really put a time limit on it. The longest I have travelled for is 6 months in Germany, and that was not nearly long enough! That is about all I could add to that.
yeh I probably will travel and travel. I'm just saying 6 months / a year is when I'd probably start missing family / friends and the comforts of home. Ideally at one time 6 months to a year is enough - I don't think I will stop travelling after that. I realise I have more time to travel after RTW (which I start off in November). However I like to squeeze in as many (but not too many) countries as possible because I think I don't know what the future holds. I think what if something happened that would prevent me from travelling - I don't know - like an accident or maybe getting a job upon return and not being able to leave, or something else - can't think yet . I would regret not having visited the countries that I wanted to. So I do a RTW journey. South America (alot of), OZ, Asia, India are on my list of things to cross off. Then when I have saved up again I do intend to go travelling. Next time Canada and then Africa and then after that wherever I have not been. I have already travelled to France (lots of times), Tenerife, Kos, Greece mainland, Lanzarote, USA, Dominican Republic, Barbados, around UK and Ireland - so can't say that I aint travelled before or after RTW am not getting on a plane cos it isn't really how I'm thinking - if you catch my drift. For others I think it is to do with their career why they can't travel again - they get a chunk of time off work - say 6 months to a year and take full advantage of it - visiting as many countries as possible. They seldom get that chance to travel again as they wanna keep their job when they come back. Or they may have same reasons as me...dunno However maybe that is why RTW trips are done. Sort of a once in a lifetime opportunity thing mostly. Im sure most would agree. Or there are just folk who wanna take a break - disappear for three months or 6 or 12 and then come back home and not travel. Guess that's how it is I think.