Hhhmmm... Vaping cheap juice is like drinking cheap beer, IMO. One can, of course, but why would one want to? That said, I DIY my juices, so mine are a lot more inexpensive. Something you might consider, assuming your local laws will permit you to do so. A real good option, if you've found a juice you like, is to query the manufacturer and see if they offer the same flavor in a different PG/VG balance. Another option, if you can find juice you like from a local juicery, is to buy in bulk, if they will sell it so. Your local manufacturer (I'm assuming such exist in the UK as they do in the States) might be willing to make you up a liter or two of your favorite flavor with a different ratio as well. And, you can always add a bit of VG to your juice to boost the cloud level at the price of attenuating the flavor/nic a bit. 2 or 3 ml in a 15ml batch would make a big difference, I'm thinking, without stretching the nicotine or flavor too far. That said, 8 quid for 15ml does seem a bit rough, but not by all that much. Today's fix is $1.56, making it $12.48/15ml. Most of the juices-- common, not gourmet-- run about $10 at my local vape shop, and you can get the cheap Chinese juice-- run away screaming!-- for less. A large number of gourmet juices are double or triple this amount.