If you had to make a thread about it, I think you already know the answer.
The best equivalent (hardware wise) would be the original Galaxy S:
-4" vs 3.9"
-SAMOLED vs SAMOLED
-1GHz A8 vs 1GHz A8
-512 MB vs 1GB
-SGX540 vs SGX530
-microSD vs microSD
-5MP vs 8MP
...give that a go if you want to dip the water, its not obsolete yet.

Or you can take a splash dive and grab the SGSII which has a much better processor/RAM and also a bigger and better screen!

Or grab the latest and greatest Android device: SG NOTE, Gnex or Captivate Glide.