Uhhh, no it's not. Some people actually might consider quality of life issues rather than the quickest upgrade. I'm at CAL ('97 hire and actually like it here) and could've held a EWR 737 capt bid a year ago. I passed on it for one main reason; I live in IAH and wouldn't move to the EWR area, so I'd have to be pretty much insane to commute from hub to hub to be a bottom feeder rsv capt and be scheduling's bitch for the next few years with virtually no days off once the commute time is added in. Some guys rag on living in Houston, but for me it ain't bad... I'm in the 'burbs building an RV-8 and riding my CBR on my days off. It's really a pretty decent gig as a relatively "senior" FO and having a good number of days off. For me, right now, days off are everything, not the upgrade. Perhaps in another year I could hold IAH capt... to sit rsv at home might not be so bad.
But, I suspect some people might go for the quickest upgrade to be abused by scheduling and beat up by the commute just so they can have something to complain about; it's seems there are a few on here that just live to whine...