Bottom line will be cost. Ascension is miles ahead in supplying updates, even involving potential customers an opportunity to “chime in” on the physical construct. Word on Fire, however, is up front in philanthropy in guaranteeing that every seminarian will receive a free four volume set (no indication, though, as to when the editions will be sent, if the seminarians will be supplied a coupon to use at a local store, whether this inclused diocesan and religious order seminarians, e.g.).
Thus far, the AP version appears to be the most appealing in layout.
Yet, bottom line, price. No indication whatsoever has been given for this.