Well, the Verb AZO 16x DVD-R are holding at Amazon at $18.27 per 100. Two spindles get ya Super Saver Shipping.....
The "TY" 16x DVD+Rs I have are actually in colorful JVC-branded commerical-packaging, no mention of TY, which was fine - we all know JVC = Taiyo Yuden. Normally +R discs are more expensive than -R, at least among the Verbs and TY that we like, so I stick with -R, especially since that's all my old Panny and Pio recorders will accept. I recorded a series of important programs on my Philips 3575, so when I dubbed them to disc, I did a "master" copy on TY 8x DVD-R, then a "backup" set on the JVC DVD+R. Both series of burns went equally smoothly, and the finished discs play in whatever I put them in. The irony will probably be that the expensive -Rs go to pot in a few years and I'll still be playing the "cheap" JVCs when I'm 87!
For all the debate over 8x vs 16x, I have to say that my 2004 Panasonic DMR-E85 accepted all the big box 16x media I fed it in the 2006-07 time period (granted, the quality of the mainstream retail brands hadn't started going down then), and my Funai-based machines seem completely indifferent to the two types. Citibear has warned so vigorously against using 16x in the old Pioneers, though, that I just don't do it.
Amazon pricing.....I'm thinking that it reflects the *absence* of human intervention; perhaps the retail price is determined by some formula based on what Amazon pays for inventory. Or maybe there's some algorithm that jacks the prices during peak buying times. Forgot about the problems with limits on how many you can buy. Let me have 3 paks, no sweat, but then I haven't bought any for months.