There was also a discussion back in the PIPs a few years ago of cutting seat pitch in the LD Superliner coaches. Ironically, that was actually intended to
improve the passenger experience and was based on customer complaints...the seats are so far apart that using the tray of the seat in front of you can be less-than-ideal, especially if you're trying to get some work done/watch a movie. Mind you, this was a case of cutting something like four inches back and getting an extra row or two of seats out of the deal...this was also in the context of the massive run-up in LD ridership from 2003-13 and the prospect of no new equipment.
I'll also say that I think there is a (painfully solid) case to be made for Amtrak working with Maryland, Pennsylvania, and New Jersey (and possibly Virginia as well) to run a set of through commuter-ish trains from WAS-NYP. In such a case you'd be looking at the objective being both serving a whole slew of intermediate markets (these trains would be making a
lot of the stops and probably take another 45-60 minutes above your standard Regional), but you would probably be able to run a crew from one end to the other and back on a legal shift (presuming a 4:30 run each way, if you turn the train in 60 minutes you'd have two hours of slack for the twelve hour limit). Pricing-wise, a "regular" fare in the $35-55 range would seem to make the most sense as that would be in line with prevailing commuter fares*. Sitting down around $40 for the total fare would probably involve reducing down a few of the "base fares" for through passengers (e.g. SEPTA nominally charges $12 for a Zone 1-to-Zone 1 ticket passing through the City Center stations, but a "passing through" fare is only $9.25...apparently even including to/from New Jersey), while a higher fare would probably also be adding a few dollars to account for the Perryville-Newark, DE gap not being in the mix below.
*Commuter fares for each segment of the run are as follows:
Code:
DC-Perryville: $12.00 MARC
Newark, DE-PHL: $8.00 $20.00 SEPTA
PHL-TRE: $10.00 $30.00 SEPTA
Trenton-NYP: $16.75 $46.75 NJT
===== ===== OR ===== =====
DC-Perryville: $12.00 MARC
Newark, DE-TRE: $9.25 $21.25 SEPTA
Trenton-NYP: $16.75 $38.00 NJT