I do not have the expertise others on this board have, however, I can say with certainty that it depends. I have copied from a Domebase post, 6 month old BIDS on Directi for 3 letter .INFOs:
Law $14,500
Buy 3,310
B2b 3,010
Inn 2,110
Flu 2,010
Air 1,390
In retrospect, those bids would have nabbed a steal, thus current actual prices are probably higher.
If the three letter .INFO you are asking about is only an acronym and not a word, then with more certainty I can say, it depends. Is it QZK or IBM?. One thing for sure, despite the depressed tech market, the value of .INFOs is moving up.
Good luck,
William