I dont think in any quantity at least you will see large numbers of 170/175's at any mainline. The costs to the mainline to crew those aircraft just havent seemed to be where they want to go. I remember years ago when AA wanted the F70's but the pilots wouldnt fly them for what AA wanted to pay and and neither budged...hell they eventually got rid of the F100 because of the same economics. Its that exact gap that has fueled the current situation that we have today with the size of the smaller company aircraft getting larger and larger over time.

Are the pay rates at the smaller companies inadequate for the 70-80 seat market absolutly.....but there is room for some movement there.....but I dont think you are gonna convince the mainliners to fly them for what management wants them to be flown at. now the 90 seaters.. to me thats where I think the line probably is... are at least in that zone....

So sanchez am I to presume that you think any guy who takes a job with a carrier on anything bigger than 50 seats is the equivalent of a go-jet pilot?