>it will probably be a lot more expensive to implement it yourself compared to using an off-the-shelf tool developed by a company who's sole purpose it is to respond to those kind of changes.
If your company is small or at least in a field with lots of competition sure.
I work in a >100person company that encounters loads of regulatory changes due to food safety and lots of international trade and 2 people developing is good enough. The part doing the accounting and such is largely outsourced to an ERP but is honestly simpler yet just as costly if not more.
What's more things go wrong. That's a given and the absolute best way to deal with it is with someone as close to the processes as possible. you don't want to be calling vendors that are generally absent to see in which part the software lies.
Even for industrial equipment that is a lot more single process it is kind of accepted that we people on the ground need to know a good bunch to troubleshoot ourselves rather than paying someone to come over. After all if we wait for that we get a bottleneck that has dozens of people twiddling their thumbs.
