Well.... A600, A1200 and A4000 all had internal IDE interfaces. The A3000 had a SCSI interface. All other Amiga models had to use add-on HDD interfaces, which

Well.... A600, A1200 and A4000 all had internal IDE interfaces. The A3000 had a SCSI interface. All other Amiga models had to use add-on HDD interfaces, which started SCSI because that was the dominant platform and shifted more to IDE over time. So, I'm not sure I'd agree that SCSI was more popular on Amigas over time.