That's a very difficult question, I don't know. I did spend thousands and a lot of time, but then again I am not a genius. I wasted a few Gs in retrospect. And I am not sure I already have everything figured it out. Trading is expensive, if you're not prepared to spend thousands even if you won't use Gann then don't trade.
The theorem behind both are very similar, they both deal with natrual law. One thing is they both deal with wave tendencies, which is a large part of Law of Vibration. When I mention wave tendencies, it's not how a single wave behaves but the tendencies of multiple waves represented in a single platform.
This is more of a trader's preference. I tend to "confirm" rather than predict. This is really a double edge sword for me, at least. Predicting a price or time of when a trend will change is what the individual thinks, regardless of what the market is doing. This has caused me a lot of losses. I've decided to trade the market rather than my own Gann Analysis but using Gann Analysis to react to the market. But who knows, some day I might become more mentally mature to predict and trade well in harmony.
It's BS because it's not Gann but Gann-based. Also, BS because of all the marketing claims. Gann is not the holy grail.
"Trading is expensive, if you're not prepared to spend thousands even if you won't use Gann then don't trade." I can't agree with that, trading doesn't have to be expensive, there is no need to pay thousands in seminars, books and softwares to be succesful. If it made you a better trader that's great but don't make people think you have to spend lots of money to get educated.
I'm really not sure about Gann's work as a compilation of others. Do you have to use a lot of money to learn Gann? It all depends on the individual. I definitely didn't use as much as Borsellino for Gann's material. Still, I still use a lot of money for books in general, not for Gann but trading and other books.
Please don't change the topic with this attack... he does mention that it's a personal preference... You asked for an opinion and you got it... PM him...
No there's no need, you could trade off your brokers quotes and spend zero in books, but in that case you will spend thousands in losses figuring things out by yourself. And BTW I have no vested interests, I don't have anything for sale, no seminars no software, not anything. I just post here to fight the boredom when things are slow.
Also, I don't want to sound like a control freak but please start another Gann Thread if you like to debate about Gann... The thread is for the Chat this Friday... the topic seems to be going off from what it's for... Let's try to keep the things in topic... (or is it impossible to do in ET) Thanks and apologies...