Agreed. The A500 is the winner by a mile if the criterion is contemporary price/performance ratio. Never again would the the Amiga have such a crushing advantage over the competition as in 1987. The 2000 had a nice big expansion case but was very expensive relative to the 500 (more than double the price in Europe).
The A500 was perfect for 1987. The A2000 wasn't good enough to justify the extra price.
By 1989 they needed one Amiga board with at least 8 bit chunky graphics modes. The all in one computer was out of date by then & it killed the market having two ranges of expansions.
Milking the a500 until 1991, when it was only marginally upgraded to the a500 plus was commercial suicide.