You thought wrong.
I have just recieved an email from Opus with the availablility and pricing for the dc-dc adapters.
PCA2-1215 $180 $172 $165 150W 12V DC-DC PCB module w/ cable kit
SFX-1215 $190 $182 $175 150W 12V DC-DC Enclosed unit w/ cable kit
DCX2.1215.XPC $200 $190 $180 150W 12V DC-DC with Shuttle XPC bracket
do these sound right, I thought they were around $100. Even the cheapest 90w is $142
Are these prices right?