Harry Maryles blogs about the new "minhagim" of gifts for chatan & kallah at weddings, as well as more & more lavish weddings, and the takanot that some rabbanim have issued to limit the spiraling expenses and social pressure.
I totally agree with him. Thankfully my wife & I got married in our early 30's and did not socialize with the young couples who have this mindset. We did not give each other gifts in the yichud room. Neither did most of our friends. The attitude of many of these young people, especially the brides, seems to be more excitement about this paraphernalia than the marriage itself. As soon as the first dance is over, the girl's friends all huddle around her giggling while she proudly displays the jewelry she got from her groom in the yichud room.
Is it still a minhag for the girl's parents to get the boy a shas? The truth is, most people who have those big expensive sets of shas rarely use them. They use their old beaten up gemaras from their yeshiva days. What's the point of the big shas? It's just for show.