$100 frame- DIY
$500 frame-maybe a cheapout isn't a great idea.
I am cheap-very cheap
On a cheap bike/frame- something worth $200 all total(entire bike-a frame that would sell for $200-maybe even 853 reynolds MTB I would not cheap out)
I might use a the back of the point of a knife blade to CAREFULLY de-burr/straighten out a few burrs - or run a modified cup thru after removing/rebending worst burrs with knife
So it all depends on what the bike frame is worth(actually sell for not what it originally sold for)
and if it is mine, or something I will sell

Sometimes you have to restrain your natural CHEAPSKATE tendencies
Lots of bike riders-are CHEAPSKATES
Yeah I am