ncbill
Thinks s/he gets paid by the post
Thanks for all your replies. I just want to note that I've had 5 reputable companies give me quotes, and they ranged from $9500 (Goodman 13 seer) to $14500 (Trane 14 seer). The two quotes I've mentioned above, for a Bryant and Carrier, are middle of the road. Perhaps I should specify that this quote is for the outside unit as well as the air handler in the attic. These really are the going prices in the (expensive) Twin Cities. Pretty sure at this point I'm going to opt for the seer, since you are right about lack of payback.
Do you need to replace right now? Any cooling needs in September?
As another poster noted the current refrigerant (R-410A) will not be used in new systems made after January 1, 2023...OEMs are required to switch to R-32 or R-454b.
If you can wait for a replacement using those new refrigerants I'd do so rather than being stuck with one using an obsolete refrigerant.