I agree that you can still capture great and very convincing results on cheaper media...but this post seems to be more about digital vs. analog...and analog isn't always cheaper.
I actually prefer analog voice recorders because I'm of the old school of thought that an entity is more likely to imprint directly onto the tape. However...that can get expensive. You'll need to invest in an external mic to cut down on internal gear noises...plus you have to constantly buy fresh, high quality tapes if you want your evidence to be as free of contamination as possible. And those tapes don't last very long as compared to the file capacity of most modern digitals, lol. Also, you'll have to invest in a good patch cord if you want to analyze your results online. Plus...you'll still need to invest in quality recorders with a wider range of voice pick up to maximize your results.
As for film cameras...again, I prefer to use film for various reasons including access to a negative and the imprintation hypothesis mentioned, but still...film is not completely free from flaws. Buying good quality high speed film gets expensive...as does actually developing said film, despite the good deals. Even a few bucks is a few bucks.
http://www.paranorma...phy_article.htm
And I'm not entirely sure where this idea of film cannot be matrixed comes from...true, MOST film pictures are of a higher quality, and when you enlarge them, they will not be subjected to the dreaded "pixel monsters" phenomena...but pareidolia (or as many people prefer to call "matrixing") is a sensory input process independent of what type of media is used.
http://skepdic.com/pareidol.html
Striking a happy medium would be to use both digital and analog in conjunction with each other, especially with cameras. Digital camera technology is improving and higher quality, higher megapixel models are becoming increasingly cheaper...and most people are now schooled on how to distinguish dust and orbs caused by camera malfunction, lol.
In any event...yeah, you don't have to be freaking stinking rich to enjoy paranormal investigation...but sadly enough, if you really want to be taken seriously in this field and eliminate as many variables as possible...you really do need to invest wisely in equipment, whether you choose analog or digital. Higher quality equipment with less limitations can get pricey, but if you're striving for quality evidence...it can be worth it. And really...there are ways of getting excellent equipment and still saving money. Shop wisely, look for the best deals, and be creative. In fact, I believe C_Tanner from COPS has an e-book he's advertising on this board filled with great equipment deals.