I dont think Anavar is underrated, if fact it is held in very high regard. If anything it is underused because of the cost. All of us would like the opportunity to knock out a high dosage cycle of Anavar, but hell, you're talking almost $1000 for a 8 week cycle of Anavar only at 50mg/day (at that's at the TJ Ttokkyo 5mg version price). I'd hate to price what a cycle like that would cost domestically.
However, if your saying Anavar is underated in terms of size gains, then I digress...
Also, to add, I feel Ttokkyo gear as a whole in underrated. Outside of the very informed and experienced, it is not held in very high regard which wont be the case once more people start using it.