Idk about 1 hot woman vs 100. If the one is pissed, you ain't getting any "#1" if you can feel me. On the other hand, of 100, one is mad, there 99% chance she'll convince the 99 to be mad at you too, and again, still no "#1" . So the math right there should tell you to just do it the old fashion way and piss em all off and buy more guitars/amps. Forget the women lolWhen I sell anything I always consider how much it would be to replace it. For example when I had a JVM, all 6 times I sold them for the same as I purchased them so great. However when I bought my JVMJS for £600 and sold it for £700, it was a stupid sell as they are a lot harder to get and double the price to replace.
What I am trying to say is. If you can sell it, and then replace it at the same cost, then go for it.
All that being said, unlike most tube amps, digital gear tends to depreciate at an alarming rate, especially once version 2 arrives. They sometimes have a very short shelf life and a bad ROI so leaving them in the corner gathering dust is just a huge loss of money.
But all in all, well done on the purchase of the SC20, great amp. Own one and love the damn thing.
As for the multi effects, I gave up on them as out of the 500 effects or so that they offer, I would only ever use delay and overdrive, so in the end I find them overkill f(I do own an axe fx 3, and I very rarely use anything but the IRs)
Personally, I would sit down and think of what effects you would really use. If it’s just delay and reverb for example, get a strymon. It’s better to have one hot women than 100 ugly ones.