True, as that will give you the right to say you dove it when people post it on their FB, etc. But most want to do to 140-150 to see the caverns, maybe even swim behind a column. I stayed outside with my pony and camera, shooting pics and trying to help watch for needy. I was pretty narced tho, and I enjoy narc, so I'm glad nothing went wrong.
I keep hearing people talk about going 140-150 feet to see the caverns. I have done this trip twice and never gone that deep. I just went to an old log book (2008) to see my last dive there--130 feet. I did the whole swimming through the formations thing, and we ascended right about at the PADI table limit for that depth--10 minutes from the time we began the descent. That means by PADI table standards it was not a decompression dive. I was using a conservative computer then (Suunto Cobra), and it did not go into decompression on that dive.
In an earlier post someone mentioned doing a 7 minute decompression stop, and people started talking about whether or not people were qualified to do decompression diving. I think it is quite possible that he just used a poor choice of words. When we did our safety stops on the dives I did, we extended them well past the normal 3-5 minutes as an added measure of safety. Extending your safety stop by a few minutes does not make it a decompression stop. (Yes, I know that safety stops are really just optional decompression stops.)
I am not personally a fan of this dive. The only reason I did it that day in 2008 was because I was leading a group on behalf of hour shop, and they all wanted to do it, even after I tried to talk them out of it. On the other hand, let's not exaggerate its difficulty or level of required expertise. Done as it was with the groups as I was in, the dive is very close to PADI RDP limits and probably within the NDLs of almost all dive computers. (If it was within the NDLs of my Suunto Cobra, it has to be within the NDLs of other computers as well.)