I paid $2.99 per 30ml vial last time I bought at Mountainsidemedical. Now they're ridiculously high too. I'm glad I bought ten then. I looked into it, there's a nationwide shortage, even hospitals are picking and choosing which medications to mix with it. If possible they are using sodium chloride. If this shortage lasts long enough I'll just make my own.
My last order from Empower came with their own branded bacteriostatic water. I guess they have the means to manufacture their own during this shortage. All my previous orders came with third party branded water.