Movie collectors often stock libraries of thousands of films from every different genre. However, if you don't have lots of disposable income to invest in movies, how should you go about compiling a classic film library? First of all, you may want to specialize in a genre. If you're a comedy buff, focus only on expanding your comedy movie collection. If you love movies from a classic era, only buy VHS tapes and DVDs from that period of cinema history.
The major U.S. studios release hundreds of movies per year, and independent producers and distributors release thousands more. You can check out Video Hound's Golden Movie Retriever Guide for a comprehensive listing of movies available. This guide, which is also known colloquially as the Blue Guide, gets updated every year. It catalogs movies according to genre, director, era, etc. and offers bite-size log line captions describing various films.
Given that the DVD market seems to be swallowing up the VHS market, you may want to invest in classic movie technologies, like the laserdisc or the Betamax tape. The very rarity of these non-DVD technologies increases their street value. However, beware that laserdiscs and Betamax tapes require good care and storage--you don't want to invest thousands in a collection only to lose your films to decay.