MyDmxBuddy has been on sale for a while. Thomann has it, MusicStore too, and so most online music shops.
But I am afraid I do not understand well your question. MyDMX buddy is the "small brother" of MyDMX2. Both controllers run on the same software, as far as I known, and MyDMX2 has more features, mut not SO many.
If by
sometimes am unable to attend shows
you mean that you think MyDMXBuddy standalone function may let you start the show and go away, I would suggest rethinking. A clock-controlled sequence may be good for, say, luminous fountains or "light decoration" of architecture, but I would not trust it to synch, say, a "light and sound" show, let alone live shows with real performers.
For reliable automatic synchronisation, unless you are a MIDI guru and work with MIDI tracks, you need more serious (and EXPENSIVE) solutions where you can attach events directly to the soundtrack, otherwise called timeline programming. VenueMagic and LightJams are the first to come to mind, but surely there are others. All of them cost bucks, though.