I guess firstly cloth can, has been and will continue to be done successfully on hols. You don't need to prove anything to anyone
It just comes down to what you want to do and I think what you find easy should factor into it. Sometimes getting sposies is not easy in remote areas and it would be stressful to run out of nappies or have a reaction. On the flipside finding laundromats and sitting around on your hols may not be ideal either (not to mention less than exciting in regional Australia!!!).
For us we use a combo depending on the occasion.
If I stay at peoples homes or overseas I tend to go all sposies.
If we are in domestic self contained accom I do a mixture - cloth for home (snap pockets with flushable liners - double as pants so I don't need shorts
) and sposies for nights and outings. That way I can get away with only taking 5 or so pockets - the washing load is done quickly at night with swimmers/clothes, gets popped into the dryer and doesn't cut into my holiday time!.
Whatever you do enjoy your hols