I am watching the descent VGA market (Geforce 1 to 7) from time to time, and looking to Geforce 4 on ebay-germany, i see lot's of MX versions...
Then, also a lot of the Medion Ti4200, you've posted. I see several, only for a few euros, seems that nobody wants these cards, so cheap as chips...
Sometimes, you can catch also a MSI or Albatron or something else between 5 and 15€.
I saw a GF3-Ti500 on ebay a few day ago, but a you said, you need money like an arm & a leg 😊 I think, the end price was around 35€.
Really rare are the Ti's 4400, 4600, and the 8x versions Ti4800 and T4800-SE. For example, i see (here in germany) only one Ti4600 for 99€... really too much.
Actually i see one Ti4800-SE for 10€. This should be fair. The Ti4800-SE is simply a Ti4400, only with AGP8x support...
Once, i've got also a MEDION GF3-Ti200 on ebay... it cost only 1€, with shipping then only 3,40€...
#1 K6-2/500, #2 Athlon1200, #3 Celeron1000A, #4 A64-3700, #5 P4HT-3200, #6 P4-2800, #7 Am486DX2-66