I have to agree with Hee Won Jung!
I did the mistake of buying too much gear (G.A.S. 😉 ) and now i have to force myself to get to know each piece of my gear properly before stepping to the next. My F1 lies waste at the moment, i’m concentrating on my S4 and maschine (and daily beatmatching exercises with my TT 😉 )
Maybe at one day, you learn/practice something on your Denon, the other day on your Launchpad and the third day you could think of doing some tricks with both. This way getting to know your gear gets more varied, less boring. Make yourself a little practice plan to stick to your goals 😉
This is just a suggestion, I do it this way and it works for me – Hope it helps a little 🙂