I am having a bit of EP buyers remorse. When I purchased my 8" dob I had it in mind that I would eventually save up to purchase quality EP once a year rather than purchasing pricier scope with mediocre EP. Over the past few months I have decided to start building that EP collection one at a time. My goal was to eventually replace the straw like 9mm plossl and the mediocre 30mm Superview the scope came with, but they're fine for now. I've been attending various astronomy group sessions and had the opportunity to compare various EP brands through my f/6 scope. Some EP were OK and some really wow me. One I was impressed with was the TV Nagler line, specifically the 13mm and the low mag ES. I went ahead and purchased a 13mm TV Nagler T6, since that is the EP I remembered thinking "this is amazing" when I viewed it. I have not viewed everyone brand available to compare. But, now that I've purchased it (waiting for arrival), I discussed this purchase with a friend and he offered some tough advice...that I should cancel or return my 13mm purchase and instead use that money for a few cheaper EPs instead of a single TV EP. He mentioned it's like putting higher octane gasoline into a cheap car expecting it to drive like a Ferrari (fighting words) (as I protectively cover my AD8's ears). But, in all seriousness, I was planning to acquire 3-4 QUALITY EP collection over a few years rather than QUANTITY. First is this true that TV EP are so superior to a Dobsonian that my eyes would not be getting the full experience as someone who has let's say maybe a 20" scope? And if my scope truly can't appreciate that optical difference in quality EP, then what EP's would the CN community suggest as the upper quality limit for a simple f/6 dob? Thank you kindly for any and all advice.
Wishing for clear dark skies!