I have a very minor gripe when it comes to the AI and tech trading.
When you get into the latter game, and you have a few very low level techs that you have yet to research, the computer seems to get it into its head to ask for extra-ordinarily HIGH techs in exchange for these bractical no-brainers (You could probably reasearch 10 of them in a single turn if there wasn't a 1 turn minimum).
Surely even they wouldn't be so absolutely stupid to make an offer like that????
Its kind of insulting in a way that they wouldn't be more FAIR about what they will trade... Just as humans will keep only marginally upping the offer until they get the fairest option, surely the computer should do the same.
There is no option for us to go "Offer us more"... we either accept or reject. It would be better if we could tell them the offer isn't sweet enough so that they could start making it more reasonable.