A quick search suggests it costs less to get multiple smaller PCBs than a single larger one. If I go with PCB, I may put processor, VIAs, CIAs, ROM, RAM, and addressing decoding and glue logic
on one board, the LCD on another board, forthcoming sound generation hardware on a
3rd board, and so on.
If I go with wire wrap instead, increasing prototype board size doesn't affect cost as much.
So I might try to get everything I can on one board.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.