Without wanting to upset you. . . . i'm not sure how many honest people would describe traditional breed pigs as having 'excellent conformation'.
True, traditional breeds don't have the number of teats and double muscling on the carcass that the commercials have - but the commercials wouldn't exist if it wasn't for the genetics of the traditional breeds.... I have seen traditional breeds with excellent confirmation and I've seen hybrids that look bloody awful (and vice versa obviously

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I think if you want to make money from pigs (serious amounts of it, rather than a little excess every few months) the only way to go is big scale with indoor commercial breeds. Doing this gives you a consistent carcass, faster growth rates and a more of a market for selling/supplying than you're going to easily find for traditional breeds which just wouldn't do as well with that kind of set up.
If you want to keep a few nice pigs in their natural environment and in a high health/high welfare setting then pedigree traditional breeds are the way to go. Ideally suited to outdoor living these are breeds that have been around for hundreds of years and have consistent traits and the breeding records to prove it (as opposed to having been engineered from multiple breeds to give a fast growing, prolific dam and fast growing lean pigs) You might not make your fortune from them, but they should pay for themselves reasonably quickly and with a little creative thinking and good marketing, you'll make a small profit (eventually!) but more than that, you're preserving a little piece of history and keeping bloodlines going - this IMHO is worth way more than the bottom line.
But it's horses for courses and everyone has their own reasons and motivation for keeping pigs. For me, it's just because I like having them around
