Unfortunately, I cannot edit my original post anymore, but it seems a few replies misunderstood my comment; in short: I wasn't questioning whether it is a wordplay (it clearly is), I was questioning which wordplay. Is it Old'aVista just because it kind of sounds like AltaVista, or is it Old'aVista because "alt" in German means old?
I'm glad you made the comment because at the very least I learned a new German word (native English speaker and conversational in Spanish).
It's ironic to search for "alt meaning" and find a tertiary definition of "Pitched in the first octave above the treble staff; high" which would suggest more of the Spanish "alta" root rather than the Germanic root.
Now I'm curious how much origins are shared between Spanish and German.
Perhaps we can all agree English is a goofy language!