None of my preamps cost $5K, but none of them are what are generally considered to be 'intexpensive' - at least, not on a budget forum....
In order of use (most used as the top):
Great River NV
Vintech X73
Daking
DRS-2
Manley
Vac Rac
Great River MP-2
Studio Electronic Pre2
Universal Audio (2108? can't remember model number)
MTA A Range
Drawmer 1969 preamps
If there are more in the racks, I've forgotten them for the moment...
The top 3 listed are used on every project - some multiple times - while the bottom two or three are seldom (if ever) used.