Don't know about previous versions, but the latest Acronis certainly only has 1 service with a very small footprint (It's installed on the machine I'm writing this from)
You can optionally run 2 other processes (
not services) that enable a few additional features:
1)Archive explorer - allows you browse compressed disk images through Explorer. You don't even know they are images
2)Image Monitor - Does any back-end tasks like scheduled backups and monitors for new image files.
Both of the processes combined are using less than 7meg for me under Vista, and you do not need them running to use Acronis.
IMO, Acronis is anything put bloated, being one of the best pieces of backup software I've come across. It's also won a huge number of awards (including HEXUS ones).
I'm not trying to undermine your experience lodore, but it really is the first time I've heard someone say something bad against it.