Yep, I mean if what matters to you is predominantly leg room, then Row 3 is worth considering - for sure.I must admit with the B737's I am starting wonder if business class is worth it as oppossed to Row 3. Really being Perth based it makes sense when flying back from East Coast, but more and more when I return home I drive home so the alcohol appeal is gone.
Even using a complimentary upgrade you are looking at spending $200 - $300 more for the flexible flight and just doing that for the purpose of a upgrade I'm starting to question it.
Brisbane to Perth I think makes sense, Sydney to Perth yeah maybe, Melbourne to Perth is a bit hummmm.
Some of the equation I think is the time of the flight. I tend to find mid morning, afternoon flights are fine. But after 8PM from East to West you'll find it pretty much passengers wanting to sleep and less service.
Though it's always the little things ... Wider seats, meal, alcohol, more attentive staff and easier toilet access etc.
You are also first to get served in the economy section if you need to buy something off the cart, and if you are in a window or centre seat, you can usually get up for a toilet run without annoying your neighbours (mostly)
I agree it depends on the time of day also, I do struggle with the sharing of armrests in Econ X still, but it's good to have Econ X as a cheaper option that still has some added comfort for either free (Platinum travellers) or a small price for others
It's great to have something in the middle between Bus Class and Standard Econ.