Strictly, just because the standard costs money doesn't mean that the information within it is otherwise unavailable. The C++ spec is an amusing example of this: the actual spec costs $$$, but the final draft is freely available. I can't imagine they sell many copies. I know that back when I was employed to work on a C++ compiler I only had access to the draft.
If demonstrating conformance is important, I suspect that the cost of access to specifications is only going to be a small fraction of the cost of certification. And as I understand things, it's certification that's the target of charging for specifications.
It would be nice if, for example, USB did this so that I know a USB cable actually works with a specific standard before I buy it.
At my first corporate job the first thing I did was checkout and read all the MPEG standards.
But I agree, the whale we need to go after is IEEE.
I wholeheartedly second this. I'm an individual member and a member of a specific IEEE society that sponsors a specific standard and I still have to pay for a copy. In contrast, the same standard has been adapted for specific industries and there are IEC, ITU and a SMPTE specs adopting it and those I can get for free. Doubly irritating because some of the most crucial standards like the 802 family are all paywalled. And it's not like it's warranted because if I need a standard I'm probably a vendor. Take high-speed Ethernet for example, there is such a proliferation of media types, lane counts, line encodings, FEC options and speed combinations that an engineer needs a reference from the source, and instead it's either third-party information or "stolen" PDFs.
They don't gather industry experts in a conference room and whiteboard out a perfect design that everyone agrees on and then go off to build products.
What happens is that companies develop products and services, and at some point it becomes more useful for those products to inter operate and protocols/interfaces between them need to be agreed upon. Oftentimes it's the mutant bastard children of the existing approaches by multiple stakeholders, encumbered by patents and legacy.
Adherence to a standard is not the goal, defining interoperability between existing systems is. And everyone participating is already a paying member of SMPTE.