I'm quite new to pipe smoking, but this question is relative to my current situation.
When I started, I was overwhelmed by all the choices and recommendations from fellow smokers. I went a little nuts and in the 1st 3-4 moths found myself with 20-30 jarred tobaccos of various types. I started by buying a lot of aromatics because the tin note was so delicious, but soon found that to me, most aros taste very chemically and synthetic. Alas, I'm just not an aro fan. ]
Also, many seasoned smokers where giving me suggestions to buy a lot of widely loved blends that had Latakia in them. I had no idea what Latakia meant at them time, until I popped that 1st tin of FM On the Town and knew I did not like it. I do not enjoy smoky anything. Smoked meats, campfires, brush burning piles are all just overwhelming to my senses. So now, I also had some Lat blends that would go neglected. I would go back a couple times that 1st year and never found it appealing at all. The only blend I currently smoke with any Lat, is EGR and it's barely even in there.
So nowadays, I know I love OTC Burleys, Burley Flakes, (not dark fired), Straight Va Flakes and a couple VaPers. I find myself wanting to keep buying more and more of the blend types I know I like thinking I might find a Goldilocks tobacco when I'm already loving what I'm smoking.
I'd rather not have all the neverending options because I don't smoke daily, much less multiple times daily, and it's hard to get myself to smoke the same blend over and over because there's so much out there.
So on the other forum I belong to, I'm running a contest to win 16 blends that I am culling from the cellar. Most of them are almost full tin qty or even multiple ounces that I will split in half so 2 winners will get 16 tobacco's to try. It's a relief to get them all out of my storage. Having said that, I found myself walking into my local shop looking for new blends to fill the space, when what I need to be doing, is just enjoying what I have saved.
Like the OP's Father, who smoked something he liked for many years and didn't think of other choices, I would prefer to just keep repeat buying the same tobacco, not really thinking about all the rainbows on the horizon.
Someday...