Bagged vapor is easy. Just add herb, turn it on and suck it out when it's full. You can carry a bag of vapor around the house or take it with you in the car. You can fill a bag while you're busy doing something else. So bags have some convenience pluses. All the hits are the same, but the vapor is mixed with more air than with a whip, so it's not as tasty as direct draw. Using a whip, you get some big, delicious hits and that makes the vaping process more enjoyable. But you also have some less than tasty hits at the end, and there's a learning curve with a whip. So you have to decide which features fit you best. If you can't decide you can get the Extreme or herbalAire and have both methods.