The problem with deals like this is that you never really know how many opportunities there are and how much time you have. Turning that uncertainty into a certainty is already an advantage all by itself.

We have a neat proverb about this in Dutch: "wie het onderste uit de kan wil krijgt het lid op z'n neus", the translation of which is "if you want to the get the last bits from the pot you'll get the lid on your nose".