I think you probably mean "wary", although as your progression to find that perfect juice goes on, "weary" is almost certain to kick in eventually!
ETA: Sorry, re-read your post, and I think you did mean weary in the first place! My bad!
First, though, make sure you have a setup where a good juice will actually taste good! (Perhaps you already have that, since you seem to like the juices you have been buying?). I think a big mistake some people make is using heads that aren't very good, and going through lots of different e-liquids, when nothing is going to taste good on a crappy head.
Nicoticket and Ahlusion are vendors that many folks rave about. (Actually, there's tons of vendors that people rave about, but those two seem to be the most popular, with Nicoticket having a fairly decent lead)
It's often not about the vendor, but about the specific flavor. I love both "Deadly Sin" and "Black Fairy" from goodlifevapors. Lots of people like DeadlySin. BlackFairy is not so popular in my house (absinth/anise/licorice kind of flavor)! My daughter loves their moo juice, I think it's pretty tasteless. My son-in-law won't vape anything but Hangsen Juicy Peach.
Sorry, this kind of got away from me.
tl;dr
1. Don't buy huge bottles of something you haven't tried, even though it gets a lot cheaper per ml.
2. If you have the chance to try a liquid at your B&M, do so! (You can almost always order more online)
3. If everything you get (no matter where or what price) tastes like crap, it's probably not the liquid, try a different head!!!