Tan, I feel for you but we all have been down the road of disappointment. Maybe not in the 6 figure range like you, but the tosai disappointment. It took me several years to realize that buying tosai is just for learning and nothing more to expect from it. Atleast now I can come to my own conclusion of development and not rely on others. If someone says "Hey Antonio, why dont you try this out for size"....I would just say "Why dont you try it first".
What I tell hobbyist today is study, study, study...Most get the curve and most dont. The BAD thing about todays hobbyist is that they want all the knowledge, but dont want to put in the time and money to learn.
In this hobby there are no "SHORT CUTS"!!! If the hobby was that easy there would alot of Dick Benbows, JRs, Keokois out there, but there isnt.
Tan, the hobby is supposed to enjoying..
Tony