Have experienced both 'Business Class' services mentioned in the thread. First being the back half of the cafe car with 1x2 leather recliners and the 2x2 blue seats similar to coach with slightly more legroom. Aboard the Ethan Allen and Empire Service NYP-ALB/SAR I know I will get the 1x2 leather seating format and will gladly purchase the upgrade. However, after getting the latter 2x2 format on NEC and the Maple Leaf (ALB-NYP segment) I don't see the benefit. Generally on the Empire if I take a morning train, newspapers will be at every seat and some conductors are better about making sure there are small water bottles at each seat.
In terms of a First Class or 'enhanced' Biz Class, I suppose it comes down to what the customers want. When I look around at the Biz Class users, it's mainly older folks or business travelers looking for some peace and quiet away from noisy/fidgety kids and a bit more space to work or relax. Don't think many would be too inclined for a meal service on anything less than 4 hours, but maybe a beverage/light snack service (nuts, cheese & crackers, fruit etc.) would be in order? I think the quiet factor and better seat/legroom are the principle drivers.
I have lived to ride on the M8.
Complete Constant Tension on the New Haven Line ETC: Mid-2018