There has certainly been no announcement about JTV-69 discontinuation. Anything anyone tells you here is pure speculation until and unless there is an official announcement. And remember that they will continue to be supported for a long time after official discontinuation.
So you can look at this in two ways:
1) Price reductions are a bad thing and indicate 'a virus or something', even though there's no specific evidence of anything bad.
2) A great product that will be supported for a long time is available at a great price.
Are you a glass-half-empty or glass-half-full kind of guy?
Life is what happens to you while you're busy making other plans.
.... John Lennon