I do not want to duplicate the binocular bargains thread here: http://www.birdforum.net/showthread.php?t=124267
Rather, I would like to start a general collection of models that users think offer particularly much for what they cost. Thus, it is not intended to discuss the most expensive models here. Or where to get the best deal on a particular model. We all know that the tiny bit of extra performance adds immensely to the cost, so here, it's kind of trying to find out what the "lower" end (with respect to cost) has to offer.
Some rough groups would be helpful, like which model offers the best cost /performance benefits among the compacts, among the roofs, and among the porro models? With personal preferences as to objective diameter or magnification.
As a starter, I offer my opinion for porros: Leupold Yosemite 6x30.
And for compact reverse porros: Pentax Papilio 6.5 x 21 with its extreme close focus.
These have been discussed to great length, and I have no real wish to post a lot more on a different thread about them. However, it is my firm belief that the Promaster Infinity Elite ELX/Hawke Frontier ED offer the best cost to performance ratio. Nothing else in their $500 range comes as close to the true alpha optical view as these.
At the other end of the spectrum, the award for the least expensive good binoculars, at $100 or less goes to the Leupold Yosemite.