I am not defending, and neither attacking anyone.
Believe is "
to have confidence in the truth, the existence, or the reliability of something, although without absolute proof that one is right in doing so", which means experience is not the only source of believing.
The believe I have is from the information I gathered, and I believe if you jumped from the 10th floor you will be done, neither I am sure you experienced this scenario, and still you are believing in the same way I do.
In addition, price is an indicator, and one indicator is not enough to be solely basing your judgment on. Still, price as an indicator is a good tool to use. The easy use of this indicator in when you are comparing silvers to golds, yet as an indicator the result you get is depending on how you are intercepting it.
However,
"Don't judge what a device can,only by it's price, being cheaper doesn't mean,being less good.". This seems to be offending me, and somehow an ignorant with respect to my earlier post. I did not discriminate Glo HD as an option because it was cheaper, flipping the table between Voyage and Glo HD and keeping the price as it is, would result me into committing the same decision I had earlier.
Anyhow, Kobo VS Amazon businesses are different while Amazon is in advantage to sell virtual goods, Kobo isn't. Primarily, as they are paying rents, etc... and their bread and butter is selling physical books. So, trying to convince me they are seeking to sell Ebooks more than physical one doesn't make much sense to me. This way, they try to squeeze their profits from each device they sells; also do not tell me Glo HD isn't targeting Voyage (in term of price) as a competitor.
Summarizing this: Amazon is in advantage to subsidize Kindle prices, and they do not while Kobo are in disadvantage of selling eBooks, and they cannot subsidize their ereaders.
"I only read epubs because that is the majority of the books being sold here, I don't want to convert every book."
I am not judging you. Read, and consume your books the way your heart's like.
You said in response to me:
"I think the whole comparisation between the Glo HD and the Voyage is wrong, a Glo HD is a Glo HD, and a Voyage is a Voyage both with cons and pro's."
I said:
"I believe that Glo HD is an upgrade of Glo, in itself it's a revial of Paperwhite not Voyage."
You are denying my comparison, in the same time you are mentioning an example with the same position to me (Glo HD and Voyare are not comparable to each other's). Yet, I think apples are comparable to apples (hence a brand of ereader verus another brand of ereader).
"For sure,you can make the darkness of a font as much as possible on a Voyage so it looks like the Glo HD, but u can do the same trick on the Glo making it even more dark."
No, you cannot, and I "believe" you cannot. Feel free to prove me wrong on this one, and consider it as a challenge. 
"Not want to rant or insult but judging a device you never tried only by make a comparisation of the price is maybe wrong."
Again, clearly I did not take price is as only indicator for my decision (mentioned earlier in my post).
"You made your choice,and I hope you are happy with it, but the points to "defend" your choice are in my humble opinion not based on real arguments, only based about what your "underbelly" says."
My choice is based on me researching the devices available to market right now, and selecting the one that fits me more with respect to my needs rather than my "underbelly" or even yours. Again, I wasn't defending my choice, I was hoping that my post was beneficent to other people whom are nearly in the same position as I was. Moreover, I though it was necessary to payback the information I got, in order to help others.
"But I think you believe what Amazon tries to do to defend their higher price by pretending that a higher price does mean that it is a higher quality."
Not really, the higher price of the ereader postponed me from gripping one earlier. Higher prices are actually an indicator of how much engineering, material, researching, and even software development that went into the product. The question if the price is justified of what you are getting is another matter. Now, add to this equation the open market nature of the world, and the monopolistic terms, and you get yourself a better picture of the price of products. In which, I am not being ignorant of.