I've been a piano technician/tuner since 2001. I've also been a consultant to families needing a piano for beginning students in their home. Education has been the main conversation, as it regards getting a good instrument that's also good enough to play well on. Parents often find themselves caught between a rock and a hard place when choosing a piano. To invest in a really good piano before the student has proven their commitment is a gamble many don't want to take, which is understandable. The dreaded "free" piano option sometimes presents itself. Truth is, many of these instruments are too worn out to play well on, not worth repairing, and/or too expensive to repair. There are many technicians that specialize in total rebuilds and restorations. But it's expensive and often cost prohibitive. Frankly, if the piano doesn't have sentimental value for the owner, an old "free" piano usually isn't worth that kind of expense. Those instruments that do have "SV" simply become furniture because of the expense to repair it.
The piano industry has undergone many changes: stores closing, lower quality instruments being imported, and of course, a decreasing interest in the serious study of the piano. Those who pursue the great piano literature are a minority. There's been a shift to the more popular styles heard online. In most instances, a digital "piano" may be the better option for the modern student. There are, however, plenty of people who prefer the sound, look and feel of a genuine acoustic piano. And there are still countless pianos out there needing a good home!
With that said, your piano should be on a regular maintenance schedule. At least one tuning every 8 to 12 months is recommended. Temperature and humidity are the main "culprits" that affect tuning, among other things.
Please contact me for my free 21-page document that goes into more detail about these and other piano tech related topics. It'd be my pleasure to send it to you.