You can clean them, there's tons of videos on you tube on how I'm sure there's a few videos on this forum under tutorials. I've cleaned a few of mine it's not hard. To try out new flavors I've started using cartomizers they are cheap enough to throw away after you use them, I've gotten a few and taste my new juice I think I got a pack of 5 for around 3 dollars (can probably find them cheaper online). That way you're not really commited to a full clearomizer just to try them and if you decide to put them up to try later you haven't wasted much.
mischi3vous's post in New here with question about clearomizers was marked as the answer