If the issue is how difficult/easy it is to find the treasure in the modules, why doesn't somebody do a thread going through the modules on a room by room basis pointing out where the treasure is and speculating on how likely a party would be to find it?
It's been done (T1 Moathouse); but that's not the only issue. And, even when it was done, arguments erupted over how easy it was to find various treasures. In fact, if I can locate that thread I will, for it will throw some light on recent claims re: Bullgrit's assumptions about how much treasure is found.
In 1e, by the RAW, you cannot simply gain a level by gaining the required XP. If you take a look at the 1e DMG, page 86, there is a section entitled "GAINING EXPERIENCE LEVELS" that might be of interest to you. Gygax all caps the following:
UPWARD PROGRESS IS NEVER AUTOMATIC.
....
ONCE A CHARACTER HAS POINTS WHICH ARE EQUAL TO OR GREATER THAN THE MINIMUM NUMBER NECESSARY TO MOVE UPWARDS IN EXPERIENCE LEVEL, NO FURTHER EXPERIENCE POINTS CAN BE GAINED UNTIL THE CHARACTER ACTUALLY GAINS THE NEW LEVEL.
There is also a lot about training times and gold that must be spent -- things that cannot usually be done in the middle of an adventure. Gygax also writes "Just because Neil Nimblefingers. Rogue of the Thieves' Guild, has managed to aqquire 1,251 experience points does NOT mean that she suddenly becomes Neil Nimblefingers the Footpad. The gaining of sufficient experience points is necessary to indicate that a character is eligible to gain a level of experience, but the actual award is a matter for you, the DM, to decide."
In the case of level draining monsters and effects, not only was there no saving throw (!), but the effect was permanent. An encounter with a wight, a vampire, a wraith, etc., could remove quite a few levels from unlucky PCs. Simply gaining the XP once is no guarantee that you keep them!
So, one of the most obvious faults with B/Q's assumptions is that the characters, finding all of the treasure, and defeating all of the monsters, do not need to take regular breaks, find a trainer, and then spend weeks to become the next level before returning. Because, if they do, then they should not find the place in the state they left it, and if they do not, any XP over that needed to gain the first level they acquire is lost. And the level has yet to be gained.
The tournament structure was such that it was desireable to test players over a range of PC levels. For this reason, so long as a player team met the criteria to move on to the next round, that team would use the next round's pregens,
regardless of what the actual XP calculations would have been, and also
regardless of the training rules in the DMG.
Using the pregen character's advancement to determine what would be expected in campaign play is comparing apples to winnebagos.
RC