Thinking about buying a 610.

[S&W-Keeper]

I like your choices other than the 329.I suggest that if you have never shot a 329 try it. It is a beast imho.

 

[bishopm14]

I would trade it for 38 Special and/or 45 ACP ammunition.

Probably the best route to take.
Being an impressionable, gun magazine reading kid when the original 610's came out, they were always a grail gun to me. Finally got a four inch -3 back in 2007 or 2008. IIRC, even with an extended firing pin and a duty action job by a noteworthy smith, it was always a choice of a too heavy trigger pull to achieve 100% ignition, or a decent pull and not quite good enough reliability.
Then I found .41 Magnums and realized an N frame is a real inefficient platform to launch 10mm or .40 from.
Kept a bunch of 10mm's but ditched the 610.

 

[Cleandean]

Having a few wheelguns that are nearly extraordinary… A 610 is missing from the group . It has become my Grail Gun.

 

[UltraCarry45]

Update: the 610 lost out to another 44. I got the 629 PC. Maybe someday I will get a 610. The M27-2 is my grail gun.

 

[KurtC]

You can run .40 thru the 610, but carbon will build up just ahead of the case and make in difficult to chamber 10mm, much like .38 Special does in a .357 Magnum. You will need to scrub the chambers with a little extra attention to detail.