Not everyone uses the forum, normally get 3 or 4 per hol but I've done trips when nobody as posted yet they have been fully booked. JY don't run with small numbers so there will be plenty of you.
I did this holiday last year its good fun, highlights of course are Vegas, Grand Canyon and jeep ride in sedonna. Bryce & Zion are awesome sights.
Also for me been into westerns the visit to Kanab (little hollywood), Rustlers roost (phoenix meal) and Scottsdale old town were good.
Part i wasn't keen on was city tour of Phoenix, just another big city, nothing special in my opinion.
One tip, take something warm for night time in Flgstaff, gets cool because its at altitude.
Mick