Hehehe, yeah, you'll learn quite a bit hanging around here. Welcome aboard!
The "age" statement has to do with, well, aging the cigars. In otherwords, keeping them in the correct environment (temp and humidity) for a period of time usually measured in years, though you'll sometimes hear someone say something like "with 6 months of age". It also can refer to the same type of process when used with bales of tobacco prior to rolling. In fact, just about any cigar contains tobacco aged to a certain extent. With NC (Non-Cuban) cigars you find aged tobacco more often than you do with Cuban cigars which tend to be rolled with tobacco that is less aged.
Talking about age in a rolled cigar has to do with giving the tobacco blend time to "meld". This can be less notable with tobacco that has already been aged for many years in the bale than it is with younger tobacco.
By saying that "these need age", your buddy is saying that the tobaccos in the blend need time to meld, that they taste young and that they should improve with age and become more complex.
Hope that helps. :thumbsup: