I have enjoyed this thread, even though it has broken down and gotten a bit personal. It is almost like a car enthusiast and a motorcycle enthusiast discussing which is more interesting. I suspect that most who read this thread and post here are interested in Samurai swords. A machine made gunto is not a Samurai sword and is simply a different animal - a Japanese sword no doubt, but not made in the traditional style.
As an investment though, I don't believe that either have been particularly good over the years, and if anything the gunto have outperformed the Samurai swords (i.e. shinshinto and earlier). I have been collecting nearly 25 years and believe that $2000 will buy a Samurai sword now just as good as the one it bought in the mid 80s. On the other hand, the guntos have clearly gone up. It was possible then to buy as many NCO swords you could store for $100 each and shin guntos went for $300. Both have tripled to quintupled since then while the true Samurai swords have barely moved in the intermediate and low price range.
Having said all that, I find the true, hand made, pre-Meiji Samurai swords are much more interesting as a piece of art and exceptional craftsmanship.
PS, I had a bad experience with Macsmilitary