Anytime i order, i always select the priority(w/ tracking) option. A lot of times there isn't any other option at all. But we all know that some DN packs don't go out priority or express. So do vendors and buyers have the same rates of success with first class? Assuming that stealth is still good and the vendor isn't an idiot, First class should work fine right? The only thing i question is the lack of tracking for first class. If i go buy a stamp and envelops with cash and package something then ship it in regular letter-sized envelope with a stamp in the right upper corner and it doesn't weigh too much or look/smell funny then there should be absolutely no problem, right? Except that most vendors prefer priority because it has tracking.
TLDR, But is it a big deal to use First class(no tracking) as opposed to Priority(w/ track)? Or is there a way to track First Class, but still use regular stamps and envelops bought with cash?
Not true, if you have enough postage stamps for FC then you can affix a tracking label400 and track it.
They prefer it because it's faster so their customers don't bitch about time and they can release their funds IF it's tied in escrow.