[microbet]

I don't think folding is terrible or anything.

Implied odds are the main reason for completing.

There are lots of ways to win besides stacking people when you get your straight, but that tips the scales here for me vs. a hand like T5o. T9 also has a reasonable chance of winning a small pot with top or second pair.

I wouldn't be surprised if a really good player could make a profit completing preflop with any two. However, In this spot, I only complete with something reasonably coordinated.