Xanderman,
That is a simple question, yet it is not a simple answer. Let's examine the three main reasons that pilots in this field want to fly "bigger airplanes".
1. More money
2. A perceived or real idea that it would be "cool" to fly big equipment
3. Resume building - something to add to the "experience" column so as to be more competitive in the hunt for that "dream job".
I find it ironic that you are asking this question. It appears that you are an America West pilot. At America West, you fly aircraft that range in size from 113 seats up to 190 seats. The payrate is the same for all these aircraft at America West. In addition, your top Captain rate is $137.72. The top Captain rate at Comair is $113.12. Next year, the top Captain rate at Comair will be $118.22.
So to recap: The extra 120 seats between your 757 and Comairs CL700 nets you about $20. To put it another way, if I decided today that "you know what, that Xanderman sure is a smart fella - I want to go fly the "bigger" 757 at America West". It would take me about 15 years to get back to my current pay. In the meantime, I would lose money and I would lose scheduling QOL. I currently have 4 weeks of vacation and can hold lines that have 18 days off.
If that is what you mean when you ask if I want to fly a larger aircraft, then the answer would be NO!
That covers reason #1 to fly bigger aircraft.
As for reasons #2 and #3. The answer was Yes, but now it is No. These reasons are part of the problem. Pilots are willing to fly bigger aircraft for the "thrill" and for the resume. I don't need either.
I don't want to bust your chops Xanderman, but rather than ask why I am defending 50 and 70 seat airliners, the questions you should be asking are:
1. Why are these airliners now considered "RJs" when they used be called DC9s and Fokkers?
and
2. Why does the union continue to support multiple alter-ego carriers bidding on flying with a single management?
These are the important questions, not whether or not "RJs" are airliners - they are just as much an airliner as is your 757.
Take care.