If playing classic games is what you're after,
I'd go for A1200(US) or A4000(Europa) based soly on price/compatibility.
A1 with UAE is my choice. But I'm a fanatic. And I'm too curious about the future.
A4000 served me well, but it's a gamble because of age.
A lot of stuff ends with OS3.9. But I believe more starts with OS4.
If you understand what I mean.