May I suggest you do your homework on the particular vendors you're thinking of purchasing from? Look for the specific vendor in the E-Juice sub-forum?
Every business owner makes their own decision on how to model their business. If they don't crash and burn in the first 6 months, they may revise that model or stick to what has kept them viable. They are the ones that decide where their comfort zone is, as far as overhead, employees, turn around, product, quality, advertising, possible incorporation, etc., etc. Their business, their headaches.
You, as the consumer, decide whether the business fits your needs. If only being able to order one day a week is a problem, go somewhere else. But criticizing a business because of that is pretty ridiculous considering the many businesses that leave you hanging without your cash, the product, the WRONG product, no customer service, or a product that sucks.
And you not naming the particular vendor? Anyone who's been on the forum for a few months can pretty well make the conclusion that you're talking about Alice in Vapeland. If that's wrong, I stand corrected, but I am unaware of any other vendor that is open for a brief period, once a week.
I will also add I have been a regular customer of AiV since September, AiV is my only ejuice source, and not once have I had an issue with ordering. I won't debate the quality of their ejuice, their packaging, etc., that is all personal preference, but I will say their customer service is great and they do adhere to their shipping time as stated on their website, along with a tracking number. They also have a telephone number/email accessibility, and a physical address, 3 things a business must have for me to consider them, barring 5 star or ECF member recommendations.
If AiV is in fact the vendor you are referring to, you can order some of AiV's ejuices from Giantvapes 24/7. From what I understand, Giantvapes sells out of it pretty quickly though. I wonder what that's all about..............?
