The Most Important Rule Of Copywriting Is To Believe What You're Saying

I seriously can't seem to get excited about Japanese kiminos...
Maybe watching a few animes can help!

I believe you're absolutely right, you as the copywriter must be able to convey a genuine sense of interest to your buyers, which I feel can only be done by allowing yourself to believe what you're saying.
However, even if you feel as if a service doesn't come to par with your personal beliefs, that shouldn't bar you from declining the offer as a writer. I think that you should look from the perspective of your employer, and try to find out how they can see the service as an honest one. Then, you can at least have a perspective to work with that you don't have to tread on.

I'm not saying that a copywriter should fake enthusiasm to
get the job but this is one of the silent test that prospects
give to a copywriter he is looking to hire. If you are enthusiastic
about the product or service you are more likely to get the
job.

But for sure it is hard to write for a product you don't feel
enthusiastic about.

I also wouldn't write for products I don't feel morally
comfortable about, which is why I don't write for dating
or gambling products among others.

-Ray Edwards

Sincerity really comes through your sales copy. But the other important thing about accepting a client whose product you don't like is that it will be very hard for you to write about the product.

It really is some kind of torture to do that and I wouldn't recommend any copywriter to accept offers they feel are not interesting for them. Of course, it's always better to choose a niche you already have a vast knowledge in. Makes the process much more fun.

-Ray Wilson

Yeah, if you aren't sold on your own copy who else is going to be? That's one thing I always ask myself. I spend some time away from it then I read it objectively and see how I feel about it, as if it was written by someone else, and if it arouses GENUINE interest in me.

I couldn't agree more with that! You have to be honest in copy writing and see to it that you are interested in your own product before trying to convince somebody else.

Truly irresistible sales letter copy can be learned ONLY through trial and error, long and hard work, constant study and practice.

That being said, I think the best way (and fastest) to learn to write sales letters is this:

1. Read R. Collier, D. Kennedy, J. Caples, E. Schwartz, whatever... for 5 minutes (example, randomly pick a page and read a few paragraphs).
2. Pick a sales letter of your choice (could be J. Carlton's) and analyze it... for 10 minutes non-stop!
3. Copy & Paste the text, sales copy elements you now understand!!! (Paste into your swipe file).
4. Use in your sales letters.

Repeat, repeat, repeat...

Note: Allow yourself a few minutes more time, that's o.k.

Now, the reason I'm saying 5 min, 10 min is because human minds work much better if we allow our memory to work in little chunks of time.

On the other side, when you read 30 pages in 45 min, you understand very little (in reality) and gain no practice, experience. That's why everyone says - practice, practice, practice! Make sure you actually do that.

Hope this helps,
Ray Wilson

P.S. Don't read passively for 1h and then forget 90%. Read 5 min and immediately follow up with some real-world practice.

Well, WELL friggin put man. This is why it's important to pick a niche and specialize in it.