As we know, far cheaper RAM is available than these:

http://www.edgetechcorp.com/store/Products/Standard-SIMMs-(Desktops)/Fast-Page-Mode/30_pin-non_Parity/16MB-5-0v-FPM-30_pin-SIMM--Unbuffered-60ns-8_chip.htm

16MB 5 0v FPM 30-pin SIMM Unbuffered 60ns 8-chip

$17.70

http://www.edgetechcorp.com/store/Products/Apple/Macintosh/Macintosh-SE^slsh30/16MB-Kit-for-Mac-II-Si--Ci--Vi--Cx--Vx--and-SE^slsh30.htm

16MB Kit for Mac II Si Ci Vi Cx Vx and SE/30

$33.16

However, what possible difference could there between these two SIMMs sold by the same merchant that they charge almost twice as much for the latter, though even the former is about twice what it should be?

Is the pricing of the latter just marketing designed to take advantage of those who do not know their machine's memory specifications?

Am I missing something?