Perspective on Weber

Speed has never been a big part of his game. He's a beefy and heady player, with a booming point shot, and none of those qualities are going anywhere.

Any team that is not tight against the cap ceiling, would still be willing to offer assets for a 2nd pairing, PP specialist.
Offers cash savings of about $2M versus actual salary for a typical 2nd pairing defenseman.
Still could be a top pairing contributor. (See Markov, Chara, etc.)
His main tools are still not diminished due to age.

Many options to trade him at any time his cap hit becomes a liability.
1. Over $20M in actual dollars saved, in the owner's pocket, over the last few years of the contract. That has value in trade.
2. He retires. Free and clear of his cap hit.
3. Nashville trades for him to delay his retirement and avoid cap recapture. The league will likely give Nashville an escape clause, but he will likely have to be on their roster and not another team's, before that relief is offered.
4. Several standard options as a last resort. Including waivers, retention, paying to move him, LTIR, or simply having enough cap space that it doesn't impact your team (ie you are rebuilding), etc.