In my humble opinion, the way someone would describe their trip isn't necessarily going to be very accurate to what was actually experienced. It's a trip, after all. It involves a different plane of reference. A lot of times I'll look back on an account I wrote while tripping and see how what I was saying might seem like it means one thing, whereas being on the drug when I wrote it, it actually had an entirely different meaning. Likewise, I'll try to explain what my trips are like and I can achieve it at a basic level but it never really remotely gives the true picture of what happened, it's only tiny bits and pieces of the whole picture. That's just my experience, though, dunno how others feel about it.
And correct me where I'm wrong, but doesn't meditation require one to sit and concentrate? Granted, sitting and concentrating is a wonderful thing to do while tripping, but it's not the only aspect of it. Can meditation ever set you off on a multi-hour trip where you can get up, go around, do whatever, and you'll keep tripping balls regardless of how unfocused and uninvolved in meditation you become? 'Cause if not then IMHO that's a huge part of the experience that is missing. Can you go talk to people, take a walk, drive a car while meditating?