I bought all my juices during the Thanksgiving weekend sales. I have enough juice now that I probably won't need to restock until next Thanksgiving, lol.
Some juices were $.36 to $.49 per ml even after shipping charges were added in, and in many cases shipping was free. Those are good prices considering I bought the smallest amounts of each I could and not the larger, economy sizes. Even the most expensive, non-sale juices I've bought I never paid over $.67 per ml.
Be sure to search for coupon codes for any juice supplier you're considering. Try to stick with very small bottles if you don't know how it tastes or whether you'll like it. 3 to 5 ml bottles are good for sampling. It's no bargain to buy a 30 ml bottle if it's something you hate and won't vape.
You should see plenty of recommendations for flavors and vendors. Try looking through the E-liquids forum. I found the most flavors I like from Neon Vapor, Mount Baker Vapor, Halo, Mr. Vape and Johnson Creek Smoke Juice. Get extra flavor shots when they offer them.