Not at all. If you can fit 2-3 lbs of meat onto your smoker, it's totally worth it. The end result is way better than anything you will buy pre-packaged. If you can commit to a day of loitering around the backyard, taking care of some other projects and drinking, it makes for a very nice day with a good reward (and possibly quite the buzz).
There are some faster ways to do it with a dehydrator, or the oven set on low, or using higher heat in the smoker, but I find the results aren't as good.