Apologies for making a second thread, but that one got derailed within one day (before I even had the parts in my hand) and I'm going to let it drop off. I did get some useful feedback, though!
I sourced 100 LT3080 through-hole components (full manufacturer part number = LT3080ET#PBF ) because I was irked by how much it cost to buy only 10 ($40 with shipping...) and I had hoped some people would be interested in them. They seem understocked considering how long it took Linear to send them to me. I'm selling them in lots of 5 (FIVE) which would cost me about $28 to buy from Linear. I have an eBay listing, but for obvious reasons, I'd be more willing to bargain with direct PayPal transactions (Fees...). Either way, if you're interested, make a comment here or make an offer on eBay. I'll only bump this thread once and if there is no interest, I will retreat with my tail between my legs and eat my mistake. They aren't terrible parts to have in stock in my "lab" anyways. I'm not sure how many of the original 100 that I want to part with, but at least half of them are up for grabs. I'll entertain a discount for requests for more than 5 parts (in multiples of five).
eBay auction: #200792817644Cheers!
Keep the comments about more sensible "Lab PSU" designs or comparisons to the LM317 to yourselves! This train is staying on track.