The valuation sounds really low. Is there a reason for that?
As others have stated, their features are now found in many low cost proprietary solutions.
No reason to pay a tax to use open source unless you believe in it.
Agree to disagree. I cut my teeth on freepbx; love it, miss it, constantly yell at my customers digium appliances in disappointment that they don't live up to their sibling. I rolled my old MSP over to it without any hassle and afaik they're still running it a few years later and I know none of them have touched it for admin. Rolled it on my VPS for my own consulting needs and it's pain free.