http://www.ebay.ca/itm/Commodore-AMIGA-1200-OVERDRIVE-External-PCMCIA-Hard-Disk-Drive-HDD-170-MB-Mo-/281194526580
Who here agrees that if someone owns an A1200 that he should never buy this? Why? Well, simply put A1200 already have an IDE port inside the motherboard....second...you lose your PCMCIA for a harddrive that could have being used for something more important than a harddrive.
Though....it does look sexy and elegant...it is a useless device. Unless people want to mimic Amiga 500 but with AGA capacity and does not mind their Amiga have no access to the internet.
I had one of these back in the days, and it was far from useless to me back then. I bought my A1200 without HDD and added an internal 2.5" some time later on. Back then 2.5" drives were insane expensive and had very limited capacity compared to the bigger ones. If I remember correctly, I got myself a 60MB drive (yes MB, not GB) for a lot of money. When I had outgrown it, I had the option of either replacing it with a bigger one at a huge cost, or buy this product and use a cheaper and much bigger 3.5" HDD that could be used at the same time as my 2.5" internal one. I found the latter option the most preferable.
The only use for it today though, is probably if you need an external/portable HDD for some reason.