Palccoyo offers several coloured mountains. Compare the whole outing through Checacupe, not just its advertised walking minutes.
This is a landscape of several coloured mountains rather than one fixed photo spot. That is a good reason to consider Palccoyo on its own terms. Ask which viewpoints fit your outing and do not let an extra walk become automatic.
Include the road journey through Checacupe and back in the same day. A short heritage stop can work if it does not take time from a comfortable walk and return.
No. It has a different landscape, approach and route. Ask for the elevation, ascent and terrain of your actual outing rather than just a comparison with the other mountain.
Allow for a separate section beyond Checacupe. Arrange transport to the starting point and back; the ride to town does not cover the whole excursion.
Background on the subjects covered here.