Buy the best coffee making equipment and look after it.  It will make far better coffee and last for years and years, the cost per cup falling below that of the cheap equipment you would have thrown out and replaced, probably more than once.  Also, be sure to make a little bit of effort to keep your coffee equipment clean.  The easiest way to do this is a quick rinse under the hot tap immediately after you have made your coffee (before you sit down to drink it) as it does not allow the coffee oils to cool and solidify forming a varnish on your equipment, which is much more difficult to remove.  Our Swissgold KF300 filter is subject to this cleaning routine, and after 6 years of making coffee several times a day, it is still free from tainting coffee oil residue.