Now I'm going to be the black sheep and say that I disagree that racking to a secondary vessel for conditioning has no effect. I'm not saying it's necessary but even for my house IPA with an OG of 1.068 I've noted major differences in the crisp taste and nicer finish when racking to a second chamber, that being the only major difference from batch to batch.
I've now done four batches of the same beer, two of which stayed in the primary for a month and two that I transferred to a secondary chamber after fermentation was done and the FG was stable.
The first batch went to a secondary, the next two stayed in the primary and the fourth recently kegged batch went back into secondary. Both batches that did the secondary chamber have come out with a similar set of "good" characteristics.
I wish I could describe it better, but I feel like the "benefits" people talk about by using a secondary are maybe more noticeable than some people write off. It's not to say my two batches that stayed in the primary were bad in anyway but I've gone back to racking to a secondary chamber for more of my beers when I have the time and room.