I can understand the case for pushing here with backdoor flush and/or chopped straight draws to go along with top set. My thinking on this particular hand, was that I was up against a made straight with no flush or chop redraws and a hole Q that had just eaten up one of my boat outs and that living to fight another day was the better option.

There is a big EV difference between being on the 30 end of a 70/30 and the 40 end of a 60/40.

In these situations, I also feel that I have to factor in the relative strength of my opponent. Against a better player, taking a bit more risk in a situation like this makes sense, as it is generally much more difficult to extract chips/dollars. Against a poor player, waiting for a slightly better odds (i.e. 40% vs. 30%) just makes more sense to me.