Regarding the early systems that I profiled: First of all, each of these other systems were distinct from the original Apple II primarily because they were targeted at a lower price point than the Apple II. The Apple II with 4K sold for nearly $1300; that is about twice the cost of the two competitors that were released the same year (the TRS-80 and the PET). The same applies to the systems released over the next five years as I outlined above; they sold for a low of $299 (VIC-20) and a high of $999 (Atari 800). This was a disadvantage to those who wanted an Apple, but may have legitimized it as a more serious computer.