Don't know why you have to wait for Wizard labs. My Freedom Smokes has prices almost as low, PLUS you can get e.g. 75% PG/ 25% VG. Plus the juice comes in a glass, not plastic, bottle so no chance of plastic leaching into the juice over a long storage time. (Not sure if Wizard uses glass.)
Wizard labs only offers 100% PG or VG anymore
Is it really that difficult to cut your own nic and really that expensive to buy a bottle or two with the savings?
WL does offer other ratios but not in small quantity which is understandable imho. Otherwise buyers expect so many different ratios other then 50/50 which can get ridiculous and back up everyone's orders. If you asked really nice and were a long standing customer they might even go (can't say for sure) the extra mile. But they do offer other nic ratios and even bulk flavoring sizes to wholesale customers. Plus they always throw in some small token gifts on top of the high quality product they deliver.
Yes they use plastic (Amber colored PET to be exact) and that can be a good thing the day someone drops 100ml nic on the kitchen floor. If you need long term storage you can get 120ml or larger glass bottles for a dollar and change per each. I buy half a dozen every few weeks so I always have more on hand to mix up various nic levels or whatever. Most people who buy from WL are going to use up the nic long before there is any chance of leaching anyway.
As for waiting they have been constantly working to increase the output but are limited due to lack of available building space. It's not like they can just pack up and easily move this type of business to a new location. Sometimes flavors actually come in stock on the site at 1-3am so obviously Mr Wizard and his crew are working almost 24/7 to get orders out quickly. I have been there and seen the rat race as employees are constantly in motion working to fill orders. Last time I was there they were so bogged down in prep for the holidays John did not even come out to greet me.
If something goes out of stock however I just place my order and have it delayed until whatever else I need can be combined into the original order. Usually by the next day it's back in stock and I get everything I need without much delay. As for the nic you can expect it to be sold out within 48-72 hours and back in stock every week or two. Flavoring are restocked constantly as there are more people and space available to handle those as they are far less hazardous.
I would rather you buy elsewhere though as it cuts down on the time I myself have to wait for restocking.