Interesting thread, on many levels.
I am an internet marketer with degrees in marketing and e-commerce, and also a specialization in social media. This thread would make a very good case study for the results of net marketing and PR. Here are some observations from a casual onlooker:
1: Marco. Frankly, you sound like a cough medicine barker from days gone by. I can just see you standing on a soapbox shouting to the masses about Grandpa's Wonder Elixir and how it's the greatest thing the world has ever known. You are no different than any other inventor who has toiled and sweat over a product. The difference is you and your approach to the whole thing. What you haven't realized, is that people are buying you as much as they are the Ichiban. YOU are the brand identity in question here, not the product itself. This is a niche market and being a part of the community is very important, which doesn't include copping an attitude on the forums.
2: Ichiban. The tool is over-priced, period. No single tool, no matter how well designed, is ever going to replace an entire tool set. I don't care if it's made of aerospace grade titanium, diamond plated, and guaranteed for life...people aren't going to be lining up to buy single $350 tool. Multi-purpose tools are largely fad items and most realize that if they have a $350 budget, it would be a better investment to buy a set vs. a single tool. There is simply not enough value to outweigh the price point.
3: Marketing. The general approach of this campaign is, "If you don't own this product, you're a wanker." Not very smart. In the digital age of word of mouse marketing, a few clicks and negative reviews of you and your product can spread across the planet in mere minutes. It's awesome that you've created something innovative and new, and that you're excited about it. But being confrontational and condescending towards your target market is not a bright move.
4: PR. Give your product away. Find the most negative reviewer of it on this board and send them an Ichiban for free, you even pay the shipping. If you really stand behind your product, put it in the hands of someone who is vocal against it. Allow them to post an honest review, and I can almost guarantee it will be your best testimonial to date. Offer promotions and discounts for referrals. It seems that your reputation might be damaged by all of this, and a little schmoozing may go a long way to repair it.