I would say the a500 ive had so many .My first one is at my sisters now unused bought it 12 years ago secondhand.I built another wich i now have again from bits.I sold one, i got one out of a skip and i have had 3 others from an auction for 3 pound about six years ago of wich two were spares only and one was working .The a1500+ i had was also from auction about 6 years ago cost me 6 pound including a a good quality 24 pin nec printer and pc keyboard. I gave this solid old brick away a few years ago, shame as it will now be joining the a4000s with battery corrosion as it was a late 1992-1993 2.04 machine with the battery backed clock im sure it was 1993 it had that written on a sticker with commadore on with the month day and year on it.
also my cdtv is great as is my 3 a1200,s.
The worst is the a4000 desktop this is by far the poorest case desighn ever so little space its more like an oven . :-o :-D :-D