I've been casually shopping for a late-model, clean, 206L for personal use and recently pivoted to looking at early 407s and 407GX birds. I prefer Garmin glass and air conditioning which is rare in a 206L. You're likely to end up in the $1.5-2mm range for a clean 206L4 with Garmin and AC which puts you into 407 territory.
This will be my first helicopter, so I'm far from an expert. I talked to my local Bell rep about a 505 and told him I was looking for a late, low-time 206L and asked if I should consider the 505 instead. He said he can't sell a 505 to a 206L operator due to maintenance requirements.
I also looked at, and test-flew, an older 206L that was listed by a large, US-based ENG group. I caught up with one of their maintenance guys and one of their senior pilots. They operate the 206B3, 206L models, 407s, 505s, and a few A-stars. They've been phasing out the A-stars and 505s. Both had compliments for the 206 and 407 variants, not so much for the A-star and 505s.