Now that Spurs are officially in the group stages... I just thought this would be a nice talking point.
Here is how the $$ was distributed from the 2010/11 Europa League: http://www.uefa.com/MultimediaFiles/...5_DOWNLOAD.pdf
FC Porto - 7.8 million (Champions)
Villareal - 9.04 (semi-finals)
Bayern Leverkusen - 7.4 (Round of 16)
Besiktas - 8.4 (Round of 32)
City - 6.1 (Round of 16)
Liverpool - 6.1 (Round of 16)
The reason why Villareal & Besiktas have higher prize pools than Porto is because of "market pool" -- not really sure what that column means but Porto's is very low compared to some other sides. My guess is that it has something to do with how many fans watched their games on TV or something. Hint: Everyone needs to watch Spurs win or lose (get as many people to turn on their TVs as possible, haha!) so that the market pool skyrockets. Spurs can lose in Round of 32 and get more than the champions!
Finally, is it worth it? If Spurs win the whole thing, they will probably get somewhere around 8-11 million Euros (depending on how much UEFA increases the prizes this year) -- that's almost enough to cover the rumored Diarra transfer (10-12 million).
In comparison, FC Twente made 13+ million from just completing the Champions League group stage last year, Spurs made more than that (14+) in just market pool and 31 million total: http://www.uefa.com/MultimediaFiles/Download/uefaorg/Finance/01/66/11/07/1661107_DOWNLOAD.pdf