I'm not sure that we can compare the situation with modern knives to the old classics, because the world is completely different than it was back then. Everything is moving faster now, and the percentage of the general population that carries and uses a knife as an essential tool on a daily basis (in first-world countries, anyway) is far smaller. And most people would consider the cost of modern knives as way out there. I've heard it said that the average person in today's modern world processes far more information in one day than the average person in the 1700s or 1800s processed in a lifetime. That doesn't always mean better or worse, just different.
TBH, I don't know if any folding knives will still be made 100 years from now, except for maybe (hopefully at least) SAKs. But Victorinox is a manufacturing Goliath. It really depends on which other companies will still be around by then, and who is still buying their products. And when things change nowadays, they can change very suddenly in terms of manufacturing and trends. If society as we know it is still here 100 years from now, it'll be more different than we can imagine.
The Mercator looks interesting. I've had some interest in trying one out now and then for years, but haven't pulled the trigger yet. The great thing about them is you can try one out without breaking the bank.
Jim
The world may be different but the knife is still just a knife. It's a low tech item, no matter how much you want to over complicate it. How much difference is there in cutting a piece of rope in 1858 vs 2015? The steel blade with a sharp edge is still the low tech tool no matter how much the makers and fan boys want to dress it up. Opening up a box, cutting that box down for the recycle bin is low tech. A Russell Barlow from 1870 will do just as good as any Benchmade or Spyderco. Up until the 1980's and the birth of the so called tactical knife market, people used pocket knives that hadn't change much in a century.
The artificially created market has done a great job of convincing people that they need the very latest and greatest. The unexciting truth is, the tool doesn't matter at all if it's well maintained and sharp. Opinel's and knives of that design have been doing the bulk of the peasants work for hundreds foyers and still is a viable cutting tool.