I've planted a few specimen trees around the property but am leaning strongly towards putting in a row or two using the high density "tall spindle" approach for reliable and varied harvest.
ex:
I've been reading up on it for a year or two and while it is geared towards commercial applications I think it would also work very well on a smaller scale.
Some of the benefits I see on the farmstead:
Quick from planting to fruiting - as little as 3 years for real production
High density/less area needed - more varieties in a smaller area
Less or no ladder work for maintenance/harvest - tree height kept very short of dwarfing rootstock (m9,etc) and headed
Trimming maintenance and expertise is minimal - fruiting wood is constantly renewed vs trying to shape and preserve traditional scaffolding
Easier spraying/treatment due to tree size/spacing
Irrigation is easier in a smaller/row layout
Can intersperse dwarfed pollinators in the rows
On a small scale, easy to cover with netting (pest protection) or frost covers if necessary.
etc.