Now that VAd has a few 737-700s without a J cabin, there is more onerous having to search and see, and hope that "my" flight, does not get swapped to a 737-700, and the "dates" might go downhill, when you find all the econX are taken, and you don't have the choice of them as VFF WP.
When we were into this thread, all that VAd had were the 737-800s, even though not a lot of them, but at least with the 737-800s, we have J cabin, and knew 320s had no J cabin, and that VA had gotten rid of their 330s and 777s.
But now, no J cabin to buy on some routes, not the best!
But, to each their own, some don't mind not having a J cabin, but personally, I would like at least the option of buying a business class seat, without having to phone up for a comfort seat request, or to buying an econX seat.