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I pretty much only use Bias FX as a plugin, or on the iPad. The one thing that's missing is the foot switch. I've seen there is a midi controller that will work for iPad, but because I don't play live anymore I don't really need it.

I keep seeing the Positive Grid Spark amp which looks good and is around the 3/4 hundred dollar mark.

What's the cheaper floor unit you're talking about?

Looks like the FM3 is still on a waitlist I seem to remember it being way less than the axe fx III https://www.fractalaudio.com/fm3/

But there's a lot of people talking about the new line 6 helix floor unit as well. I've never really been too much of a fan of line 6 stuff though.