Quadraman, JDW's right, if you want a compact Mac with SCSI and more than 512K RAM, a Mac Plus is the way to. There is absolutely no difference between them, except the Dove Mac Snap RAM will definitely be more problematic. Those killy clips were notoriously problematic. Plus, the type of RAM used in the Mac Snap actually draws more power and runs hotter than that in the Plus. That's the last thing a 512K needs is a larger power draw or more heat inside the case.
The only reason to buy a Dove MacSnap, is if you simply want one. Not to actually use it. And I certainly wouldn't pay a premium for one. And buying it in a vintage Mac may be a way to get it, but any 512K or 128K (and even a 512Ke) will be worth far more restored to original condition.
If you want more details on the Dove MacSnap, check out charlieman's excellent article at vintagemacworld.com.
On the other hand, I do have a Dove Mac Snap SCSI board which installs directly into the ROM sockets and requires the 128K ROMs, so a 512Ke. It's actually indispensable with my 512K, does not use any additional power and generates no more heat.
The only reason to buy a Dove MacSnap, is if you simply want one. Not to actually use it. And I certainly wouldn't pay a premium for one. And buying it in a vintage Mac may be a way to get it, but any 512K or 128K (and even a 512Ke) will be worth far more restored to original condition.
If you want more details on the Dove MacSnap, check out charlieman's excellent article at vintagemacworld.com.
On the other hand, I do have a Dove Mac Snap SCSI board which installs directly into the ROM sockets and requires the 128K ROMs, so a 512Ke. It's actually indispensable with my 512K, does not use any additional power and generates no more heat.