Launch Soon: Should I talk about the price in my sequence?

Hi guys, I launch my product soon.

I have a pretty good contact with my list and open rates are great (around 45%).
I know they are interested in my product... some of them has followed the product's creation since the first week or two.

They all have a pretty good idea of what the product will be because I send them update emails with info about the product. I also add social proof element by sending them email with link of popular blogs who talked about my future product.

Long story short.

I'll do a 50% sale for the first week of my product on the market.
I've always kept secret the price and info about the launch promotion.

I announced the launch date to my list 3-4 days ago and I received a lot of question about price.

I decided to be upfront and tell the price to those who asked me.

I think I've not build enough value yet to sell my product at a price of 137$ (This will be the job of my salesletter and not my email...). So I decided to tell them about the big promo and the 50% off discount for people who takes action quickly.

Responses are great so far. They are thrilled about the discount.

The question.

Do I talk about prices in my launch sequence?
I know the goal of the email if to click the d*mn link to hit the salesletter. But I have great responses so far... 3 out of 10 asked me If I accept pre-order and one of them was pissed off because he thought it was free (wow I can't believe... I always talk about "product", "get your copy", "product launch" his english was very basic, I suppose he doesn't know english too much

Any insights would be appreciated.

Thanks fellow Warriors