Same. About three years ago we introduced a company wide policy to not buy anything where the price is not known. So, so much time (money) being wasted on figuring out the actual costs, the offering would have to be really inexpensive to make up for this. And if that were the case, the price would be right there.
They usually do high usage volume pricing at high rates that are proportional to the size of the company and make you sign a yearly agreement so they can get a huge payment upfront.
How about building some trust? What if the service sucks? It will be hard to get your money back and you paid a year in advance.
They make you work to get a quote and the quote usually doesn’t work for your needs.
I too will not look at services with this pricing structure anymore unless word of mouth is favorable.