As CATs become older, the learn program will recognize every situation. The CAT may become too smart for its own good. CATs like to have their own toys. They often have hobbies, such as bird watching or studying tropical fish. If you properly care for your CAT, it will give you years of loyal service.
Many users get a second unit.
Most users don't need the extra capacity, but they enjoy the ability to run complex simulation games. The CAT unit is guaranteed against catastrophic failure. The Ctrl key on most CAT units is defective. This may lead to serious performance problems. Do not install a BIRD unit at a site which has an operational CAT unit.