Imagine there's a businessman who has a solid internet idea. He hires you as his first employee and pays you well (also offers you shares if product generates revenue). You code the product for more than a year. But the product is not properly marketed and left almost unused. You get frustrated by loneliness and working endlessly on an unused product. You start applying at different companies. You don't get response from anyone.

After a month, you realize that things are beginning to change. The businessman has started to give more attention to the product. You have defined a solid marketing plan with him. Things are almost sure to work.

Suddenly one day, you get a call from a big company you yearned to work for. They invite you for an interview.

If you respond to the interview and get the job, you will lose the chance to earn something from your one year hard-work.

If you don't respond, you will obviously miss the chance to work in the big company. If your marketing doesn't work as well (you will know it in a couple of months), you will probably not get a chance in the big company again.

What would be your decision?