Sure, Amithlon/XL's all cool and stuff, but what about OS 4/AmigaOne?
Are Amithlon/XL users gonna keep on using OS 3.9 when OS 4's available? Are developers gonna bother supporting OS 3.9 and/or Amithlon/XL for these people?
If you're seriously planning on using Amithlon/XL for the foreseeable future, then you can't possibly care about the Amiga's future.