Nah, I agree with your take on buffoon and standard packs.

If you have money to spare, buffoon always takes priority over rerolls, which is basically what they are but better.

As soon as you have a decent lineup of jokers, I ususlly b-line it to standard packs, looking for a decent card to dupe

Also I didn't touch on vouchers because their priority heavily depends on what the voucher is. They go from "willing to dip into the bottom $25" to "this actually detriments my run" (looking at you, planet merchant)