Yes we are only talking occasional stuff here. I went thru 60 4x5s last year. A few more this year and on this property my herd is unlikely to expand much furthur than needing 80 bales per year. Here I put them end to end in a row so there is no stacking.
Where I could use a bit more height and reach is when they are delivered on a flatbed trailer. Hard to justify a bigger tractor for it as there are ways around it.
Some day I plan to move to a bigger property and have hay storage and a bigger herd so I will want to stack. I don't think I will ever be going much past 250 bales per year though. If I do though, I'd like to ensure that any tractor I go to now will handle stacking those 3 high under a coverall. Anything much bigger than a 4240 right now would be too bigg for my current place.