@ hazydave. Please tell me about these.

[gertsy]

Wow.  Never even knew these existed.  They certainly shows a downside to the A1200 design.  No external expansion port means you loose the internal expansion bay to the device.  Accelerator or CDROM would have been the choice to make.  
Imagine if you could have had both. And the A1200 CD Rom drive came out at the same time as the CD32!  Akiko Chip, CD32 software compatibility, at the right price surely they would have sold like hotcakes.  
If only the A1200 had a 32bit side expansion port! Things might have been different.

[gertsy]

I think it more shows a downside to the CD expansion's design.  Archos' PCMCIA CD drive and SquirrelSCSI addons used the PCMCIA slot (sounds like an external expansion port to me,) though of course they did come a bit later.

I have a squirrel myself which I don't use.  The PCMCIA is too valuable with plug in media; CF Card reader.  But it is only 16bit and a 32bit expansion bus is much faster.  I'm sure they used the internal interface for that very reason.
I think if the A1200 had a side expansion slot which this unit plugged into, it would have sold like hot cakes.