The cheapest and with good quality i have seen is on Mt Baker. How bout you guys?
Here's a list for some companies with good prices on 30mls. You can find reviews for many of them on this forum. Good luck in your search....
...$ 6.49 Mt Baker www.mtbakervapor.com...
Don't forget feelife, and dekang at least I prefer over hangsenIf you want simple but decent flavours and low wattage - eg EGO type - vaping at 80PG/20VG you cannot go wrong with genuine Hangseng juices. Yeah they're made in China, but sold everywhere and re-branded as most vape store's basic juices. Look for the genuine green bottle lids and the HS mark on the bottle of the bottle and on the lid.
I have only tried so can only vouch for their RY4, menthol and Virgina tobacco. I'm not sure they'll be seeing any action on my coolfire 4 or subtanks due to high PG ratio, but on an ego+evod kind of get up they're all I need. They usually do a 4 bottles for price of 3 type of deal. Get them from HS direct or many online stores sell them, also some online stores sell them in different VG/PG ratios but that of course means they've tinkered with them.
JANTY juices are also top notch and like Hangseng taste like what they say on the bottle, not gourmet / complex but bold and exact, but I don't buy them any more as do not like the way they've made them PG or VG only choices.
Sure I could mix and get 50/50, but I like to just buy 10ml to try it first, and that would mean buying 20ml just to mix and use as a tester, no way I'm doing that!