I've seen a 505 in the flesh a couple of times now and I'm also a neutral. The old adage 'if it looks right, it flies right' is a difficult one to see past.
What IS interesting is the values of good 206s have stabilised and at the sweet spot of the market, gone up (as have MD500s apparently). Late (90s on) JetRangers not so much so, as the values look expensive compared to the 505. But for an 80s BIII, I think people are recognising that the 505 does little more (normal everyday use etc etc) at 3 times the price. And it doesn't have a frightening French engine.