Acoustic uprights have their own advantages. They are less expensive than grands. They take up less space, and for small rooms, large grands may produce too much sound so that they cannot be played full blast with the lid fully open without hurting or even damaging the ears. However, the electronics have these same advantages plus many more. Owners of uprights too often neglect hammer voicing entirely because this neglect results in more sound. Since uprights are essentially closed instruments, the neglect of voicing is less noticeable. Uprights also tend to be less expensive to maintain, mainly because expensive repairs are not worthwhile and are therefore not performed. Of course, there are quality uprights that are competitive with grands in feel and sound quality, but their number is small.
Among uprights, spinets are the smallest and generally the least expensive pianos; most do not produce satisfactory sound, even for students. The small height of spinets limits the string length, which is the main limitation on sound output. In theory, the treble should produce satisfactory sound (there is no limitation on string length even for spinets), but most spinets are weak in the treble because of poor quality of construction; therefore, be sure to test the higher notes if you are evaluating a spinet – simply compare it with a larger piano. Console or larger size uprights can be good student pianos. Old uprights with poor sound are generally not salvageable, no matter what their size. At such an age, the value of the piano is less than the cost of restoring them; it is cheaper to buy a newer upright with satisfactory sound. Most uprights have been "obsoleted" by the electronics. Therefore, there is no reason to buy a new upright, although some piano teachers and most piano stores will suggest otherwise. Many piano teachers have not had enough experience with electronics and are more accustomed to the feel and sound of the acoustic uprights and tend to recommend acoustics as "real pianos", which is generally a mistake. The difficulty of purchasing a quality upright, the problems frequently encountered with having it properly "prepped" before and after delivery, and the need to keep it regulated and in tune, are not worth the slight difference in "tone", if any.