I live in a 3000sqft house and will have the set in the basement so the minimal volume of the e-drums is not a problem. My acoustic set is extensive, but I only get to use it once a week if I'm lucky. I was planning on building a studio, but with an electronic set, I can write music and practice with people home. I can record my bass and guitar silently and either record the e-drums or wait until I get a chance to play my acoustic set and record that.

I also noticed that some modules don't have a metronome. I need that. At least I can lay down a basic drum track and then overwrite it later with the acoustic set.

I'll take a look at the TD-8. It's $800. But I think I need to figure out my recording plan first. If I'm not going to record the e-drums, then the Dtxpress should be fine.