As a side-note, it took a total of 60 DQ2s to get both a non-epic torc (for TRing...incidentally, the day I got that torc in my 20th end reward right before TRing to this life, I got another torc on Youngwrunt just by being the only person to roll on it in EE DQ2 >_>) and an epic torc (for cap) on Wruntjunior. It's not something you can instantly get, but it's nowhere near as bad as, say, the RoSS. Now, making an epic torc...getting the seal, shard, and scroll really can take a year or more, even with how easy the scroll is to get now.
Really, the most important thing for people to learn so that they don't use pots is to learn proper SP management. Just knowing when to use insta-deaths, nukes, cc, slas, and the like save a lot of mana - combining this knowledge with knowledge of quest layouts lets you maximize the utility of your SP while minimizing resource expenditure, which is the objective of pretty much any caster that isn't made of money.