Do I detect a hint of hatred for them here?
Do you dislike the benefits that copper planes bring? Like low impedances especially at RF frequencies, to reduce noise and logic glitches?
Or the improved heat transfer to reduce local hotspots around IC's?
Or the enviromental advantages of less copper being etched off the PCB during manufacture and poured down drains... I mean disposed of ?
I bet it's just the **SLIGHTLY** increased difficulty of desoldering a device from a board with planes isn't it? Hmm??