Common knowledge...

Boarwild, it does happen once in awhile. Here is the the difference you go through 5-10 of those backyard bred dogs, spend thousands of dollars and several years time raising and working that pup to only be dissapointed 3-4 years invested in each dog. What is that worth to you? how much money are you gonna keep spending before you "bet" your money/time on better odds?

I have tried alot of different things, over a long, long time frame, yes the experience and knowledge I have gained is priceless along this long journey. The best part is all the folks I have managed to meet along this path.

I have enjoyed alot of hunts with people from all over the country, and watched many types of hunting dogs and styles.

This is proven fact, once you establish what hunting style works best for you, as an individual then ou start seeking that type of dog to work that type of style. NOW, you can try raising one to work that way, sometimes it turns out most times it don't, Its like the three bears story, you try this one and then that one and maybe after many, many dogs, you will find one that fits, now trying to put together 4-5 that way, well again you are either rich, in denial, or have many years invested. However, if you find what you like and start with that is your baseline and research dogs that are consistent the way you want them and have several generations that are all the same way, you got a pretty good chance of raising a pup that will also fit that pattern.
For example a guy (this is a lot of guys) breed their best two dogs and advertise how great the parents are. Those two dogs may also be good, but not similar in hunting style or patterns and traits. Such as one may be long range trailing loose baying & the other maybe also a good dog but winds and hunts closer and rough, So what do the pups turn out like? Well just because one looks like one of the parents does not mean it will be like that parent. Your guess is as good as the next guys, so you will have to wait and see does it take after momma? Daddy? Or mixture of the two? Or neither? You will have two years invested minimum before you can honestly answer that question. There a free or cheap pup can be a guessing gamble, how much do you have invested in the dog, much more than going with a pup that cost you $100-$200 more from an experienced dog person that has years of experience reproducing dogs that will almost fit the exact description of the parents, grandparents and great grandparents. Why? Because that person has put in the time in studying, proving, done the trial and error for years before you. So don’t you think that is worth a couple hundred bucks extra? The odds are on your side, that you are not throwing you money out the window. That is what you are paying for, to save yourself the time and money. A lot of folks that have been down this road have enough confidence in there dogs thay will want to keep up with the dog and progress to assure they are working out like they had planned, if not they want to know because they want to continually improve their line.
The difference is you will have a lot more fun and enjoy your sport many times over when the dogs consistently produce hogs for you to catch, So when you have a pack that you put your money where mind is, then it is worth paying a little more for someone else research, time involved that saves you the trouble, and puts your weekends of catching and being productive, rather than second guessing the dogs you feed. That is ALL THE DIFFERENCE than risking buying a pup or pivcking one up off the side of the road or at the pound