Yep, two tanks would be sweet to have. Especially if it does not have any leaks.
But it does also depend on how much air you use in a day.
Myself, I don’t use compressed air very much, so it would be a waste of energy to pump up so much air only to see it slowly leak off over several weeks.

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!