So why else may you keep such a high proportion of what you gained on 'var? It may be due to it's relatively light impact on the HPTA, which brings me to my final point:
Anavar will not totally shut down your HPTA, especially at lower doses (unlike testosterone, which will eventually do this even at a 100mg dose, or Deca which will do it with a single 100mg dose). This could be due, at least partly, to the fact that Anavar doesn't aromatize (convert to estrogen). Serum testosterone, SHBG (Sex Hormone Binding Globulin), and LH (Leutinizing Hormone) will be slightly suppressed with low doses of Anavar, but less than with other compounds. FSH (Follicle Stimulating Hormone), IGF1 (Insulin Like Growth Factor 1) and GH (Growth Hormone) will not be suppressed with a low dose of Anavar and LH will even experience a "rebound" effect when you stop using it (3). If your endocrine system and HPTA are functioning normally, you should be able to use Anavar with minimal insult to it, and can even keep most of your values within the normal range (5).
Thus, Anavar may even be ideal for use in bridges between cycles, (at very low doses under 10mgs perhaps), or as previously mentioned, for cutting/strength cycles at 50-100mgs.
Its relatively high cost is its only major drawback. Many black market dealers or underground labs, however, offer capsules, liquid form or, in some cases, even their own brand of tabs for substantially less money than the legit pharmaceutical versions, or even veterinary versions found overseas.