With all the price rises over the last two years, it's harder for dealers to stock the US lines compared to the import lines. Look at G&L...the US models are now almost all custom orders, while Tributes line the walls in music stores.
I took a look at what
Sweetwater is stocking:
US Gibson basses start at $999 for the LP Jr., jump to $1799 for the SG and then to $2199 for non-reverse T-birds. Other than the $2799 Gene Simmons, no reverse T-birds at all???? No 5 strings, either.
In the Epi line, the SG E1 (EB-0) at $289 is the cheapest and the most expensive is the Casady at $799 and no 5 strings.
Compare that to Fender's pricing...Squiers from $179 to $599 with a number of 5 string options. Skipping Custom Shop, the US basses run from $1499 to $2399 and imports from $849 to $1499 (includes Artist) again with many 5 string options.
$1000 may be today's entry point into US made basses, but it's still a lot of scratch when the same company offers imports below $500.