Why are sales letters always so long?
Q: Why are sales letters always so long?
A: Because long-form sales copy works, plain and simple. I know, I know, it doesn't seem to make much sense; it's long and boring and nobody could possibly like reading it, right? Wrong.
Long form sales letters engage the readers. Also, the verbosity - whether this is warranted or not - gives weight to the claims. The more you talk, the more likely people are to believe you; as a corollary, the louder you talk (or the more bold and highlighted text you use), the more likely people are to believe you. If you're shaking your head and saying that you're not the type of person that this would work on, you're likely correct in that assumption. That doesn't mean that the long-form sales letter isn't effective, however; it just means that you are not its target market.
As a caveat to this, though, the long-form sales letter is nowhere near as effective as a conversion tool as a simple video is. If you're looking to start a marketing venture and are contemplating hiring a copywriter to construct a sales letter for your project, you might want to at least consider diverting those resources into the creation of a video instead. As easily as people can be overwhelmed in their reading if you write enough, they'd much rather watch something than read something, and your conversion rates will be much higher with video.