I've been part of a few acquisitions. Given the amount of nuance in each sale, it would be tough to give useful advice without having more information.
However, I will speak towards questions you should ask of yourself. Ultimately, when you sell your company it is no longer yours. Are you ready to say goodbye? Have you taken it as far as it can go? Are you doing right by each human being in your working group? Could you handle seeing your unique culture assimilate into something bigger over time?
It's a deeply personal experience; don't forget about your own heart and your own feelings.