That's true that I probably need to factor in the income from selling the site, and the base income separately. Factoring in the raise is a little difficult, as I'd be moving, and expect a higher salary in the city I'd be moving to.
If the new job is typical at-will employment, I'd assign a value of $0 to that.
Would they hire you without buying your webiste? Would they buy your website without hiring you? That would help you value each component of the offer.
$200k now is better than $20k/year for 10 years, because you can invest that $200k. The question is the relative value of investing in the stock market, vs investing more in your product.
I'm not sure that they'd buy my website without hiring me (that's the impression I've received). They said it would be more difficult, but they would consider hiring me without buying my site if it came to that.
I was trying to place what they'd be willing to offer, and I gave them a ballpark figure of "> 100k", which in hindsight was a bad idea. I'm a little worried that they are going to offer me exactly that now...
Note: Hacker News seems to be rate limiting my replies now, so I'm going to put some of my other replies here too.