1. It's much more satisfying to get a positive response to my own music than someone else's. 2. Playing originals is easier. My own style and ideas come out of me naturally, whereas trying to cop the nuance of someone else's style and ideas does not. 3. These days I prefer to play out less frequently. Fewer opportunities for original bands comprised of old guys = fewer gigs. 4. I'd rather play one 45-50 minute set a night than three or four. 5. See #1.