Absolutely.

Even if he's a shelf of his former self. Even if he and Jon doesn't interact much anymore. Even if his backup vocals won't fix Jon's lead vocals. Even if I hate his guts these days. Even if Phil is awesome.

The music should always (if possible) be played by the people who made it. I still follow the band (even though Jon is making it very hard with his recent performances, but I never fully accepted them as "BON JOVI" without Richie.