I just went ot Streamlines Backshop website to look for few DCC items and I noticed a fairly large priceincrease on the Zimo decoders!
Here is a example of the current price vs. April 2017:
Decoder Apr '17 Jan '18
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MX621N $26.36 $42.17
MX649N $72.58 $115.95
That is a drastic price increase, in less than a year!
Last year the prices for the MX621N was almost comparable to Digitrax (inferior) DZ126, but not anymore.
What the heck happened? US economy is doing great!