heres my take on this- if you like the cheaper juice, PLEASE STICK WITH IT!!!!
i started out on higher end, more expensive juice, and now everything else tastes like crap (especially mbv)
whenever i try cheaper juice, i either get a strong, chemically, artificial, gross taste, or no flavor at all, plus it instantly drys out my mouth and throat and makes it all scratchy, just overall unpleasant. high quality, more expensive juice doesnt do this to me.
before i try a flavor one of my friends has, i first shake the tank. if it looks like water, i say no. if it has any thickness/substance to it at all, i will smell it. if it smells artificial/alcoholy, i say no. if neither of the above is true, i will try it. optimistically, about 25% of the time i will like it.
do you want to be like me? didnt think so

just stick with the cheap juice if you like it, then you wont have a juice budget as high as mine
also, i have a quite abstract opinion on ordering juice. i always order the 30ml size or the closest they have to it when im buying online. why? simple: if i like it, then i dont have to reorder, pay shipping again, then wait for it to come since i already have a decent supply of it. if i dont like it, im only out $20 maximum. i used to spend that on cigs in two days! what do i care about $20 if im possibly finding a new temporary adv? plus i can always find a friend or family member to take it off my hands so it doesnt go to waste (none of them are as picky as me)
sidenote: all of my favorite juices come from places that dont offer customized pg-vg ratios, extra flavor shots, and all that other nonsense. they simply figured out the amount of flavoring and the correct ratio for that flavor so you dont have to try 10 variations to make it taste good. it just already tastes as good as it can. naturally they would change the ratios for you if you said please, but imho thats just like going to a fancy steakhouse and asking for ketchup (pg sensitive people are exempt from this). my only exception to this is ahlusion, but they at least offer suggested ratios on most of their flavors, and definetly dont offer "flavor shots"