I've been using Vixen Vapors for about a year- you can specify your preferred pg/vg ratio. They have a 'Daily Deal' that's $6.99/30mL & a 'Flavor of the Week' that's $9.99/30mL. Fridays are free shipping. $20 or more & they send a free sample- I've even requested flavors for my sample! Their Tiger's Blood, Ambrosia & Heaven's Nectar are EXCELLENT fruit blends. I have also started using their 'Pixie' flavors- which are like Pixie Sticks.
I have recently been buying KillerJuice (I think their pg/vg is about 50/50, but I think you can request higher vg percentages) & have been pleasantly surprised- each week (Thursday-Sunday) they have $1 flavors- also, you can buy bigger bottles of their flavors @a really reasonable cost. A few weeks ago, I bought 19 15mL bottles of their 'milkshake' & it cost about $25 (after shipping).
I've also recently tried OpenSourceVapor- they have all VG blends- I love their Strawberry & CrunchberryLemon (tastes JUST LIKE Trix cereal).
I was afraid of DIY, but I started using .Vixen DIY mixes- basically you just add the flavor to the nicotine base & shake! Because that ended up being pretty successful, I've been 'branching out' & mixing & matching my own flavors. I but a bottle of their DIY flavor, add it to a 120mL bottle of 36mg nicotine base & then add a 120mL bottle of no nic base.... shake well & vape. I end up w/about 260mL of ejuice for less than $30. (They only have 5 DIY mixes listed, but you can get any flavor in DIY- just make a comment when ordering).
Also, you can get double & triple flavor & they offer higher nic content than most- so, I've ordered triple flavor, w/30mg nic & then doubled the amount by adding a no nic base- so I get double the juice!
(I can't say enough good stuff about VV)
I can't afford the 'expensive' stuff. If I do, I get 1 bottle. I try to find CONSISTENT, inexpensive ways to vape. Seems like prices are going down, but it's hard to know who to buy from. I am sooo happy w/these 3 companies. Let me know if you give any of them a try!
Good luck!