Partial Acquisitions

I have come across a few deals where the sellers just wanted to take some money off the table, but not sell a majority of the company. I have passed on them, however, if you believe in the owner/operator, I would think these are still good investments. You could also possibly earn a consulting fee and have a ROFR when they decide to sell.

What are your thoughts? Are there investors out there that have looked for a portfolio of partial acquisitions without a searcher?