Many big destinations -- the Galapagos, Antarctica, African safaris -- need to be explored as part of organized trips.
There are many exciting, once in a lifetime activities you won't be able to experience if you don't take part in a licensed tour with a guide.
6. Package tours can be cheaper
While this may seem counter-intuitive since traveling alone allows you more flexibility, many tour companies are able to secure bulk rates and other deals.
Small group operators can be cheaper for mid-range travel than if you were to price out the same trip for yourself.
One diehard independent traveler I know wanted to visit the wild but scattered Solomon Islands.
Lack of infrastructure and traditional tourist services meant going to all the obscure places he wanted to see -- including some historic World War II battlefields -- would have cost upward of $10,000 for charters and services.
Instead, he spent $3,500 on a package tour, enjoyed every minute of it and remains in touch with several members of the tour, including a still-active World War II vet.
What's more, saving on the cost of excursions means you'll have more money to splurge on a memorable dinner with your new friends or a ridiculous souvenir for your family.
7. Tours provide safety
When you're on your own, you're a more tempting target for thieves, scammers and criminals.
By traveling with a group, you have safety in numbers and don't have to venture into unknown places without a companion.
Additionally, tour guides can advise you on what areas to avoid that you wouldn't otherwise have known about.