What am I actually giving up by choosing a merger instead of a straight sale?

In a straight sale, you generally receive cash (or sometimes a mix of cash and other consideration) and walk away with a defined, completed transaction. In a merger — typically structured in Ontario as an amalgamation of your corporation with another under the Business Corporations Act — you usually end up with shares in the combined entity instead of a clean payout, which means your financial outcome depends on how the merged business performs going forward rather than being fixed at closing.

What you're giving up is certainty and finality. A straight sale converts your business into a known amount of money on a known date. A merger converts it into an ongoing stake whose value can go up or down, and typically comes with reduced control over decisions, since you're now one owner among others in the combined business rather than the sole decision-maker.

What you may gain in exchange is upside if the combined business does well, and sometimes a better strategic fit than a straight cash buyer would offer. Which trade-off makes sense depends heavily on how much risk you're willing to keep carrying — a business lawyer can walk through what a specific merger structure would actually leave you holding.