Quoting AncestralHamster,
Correction. The survey modules is available at the first tier of Sensors.
Thanks for catching that mistake. I edited my other post to put in the right information so I don't confuse others.
Extreme Entertainment enables you to build the trade good Ultraspices, +15 morale ability, and Virtual Reality Centers enables you to build Virtual Reality Modules, +12 morale ability.
I try hard to build those trade goods because I want the bonus and because I don't think it gives that much help to other civs when I include one of them in a trade. (Other trade goods, like Aphrodisiacs and Diplomatic Translators I tend to keep to myself unless I'm seriously obssessed with getting something in a trade.)
I usually don't build the morale trade goods unless I'm going below 51% overall, or get too low before reaching max populations. Mainly because I'm very stingy about what I build on a very limited amount of tiles. At least limited when compared to all the other things I really need or really want, including; Tir Quan Training, Xinthium Hull Plating, Micro Repair Bots, etc etc, in addition to the factories, labs, money centers, research coordination centers, the capitals (research, economy, manufacturing, political), plus Diplomatic Translators and, situationally, Aphrodisiacs, which you mentioned. And that's not counting any of the planetary defense structures (which I usually feel forced to pass up too).
The problem with any trade good is that once you build it, it's there forever, no matter whether you need it anymore or not. In sandbox games I'll trade for things like Temples and Arena of Agony for the baseline bonuses. I think every race has at least one tech line that both unlocks a morale structure and gives a base bonus even if you don't build the structure, and they add up rather nicely.