If we are talking cheap to buy and we use it, gotta be my Boss OD1X. 75 used; it’s better for what I like than any VFE, Airis, Thorpy, Wizard, vintage Boss(GE10, SD1, OD1). Chased all others away. They all sound really good but at the end of the day, I just dialed those others to sound exactly like the X.
Ultimate Drive from Joyo is another. 30 bucks 14 years ago. Use it in tandem with the X into my 72 Trem. None of those other pedals/combinations worked even half as good as this one.
Now, if we’re talking buy low sell high, I have too many to list. A few-
2C SRG combo for 750$
Mint 1974 Marshall slant, museum condition 349$
1982 2204, best MV Marshall I’ve owned out of many, 799$
1988 2554 Jube, 700$
1988 2205-999$. But this was a few months ago…boosted it’s as good as any modded or stock 2203/4.
1988 Marshall slant w/8 ohm vintages…
399$. This is turning into my favorite cab.