[quote name='Bassassin' timestamp='1446228393' post='2897989']
And I do feel ever-so-slightly uncomfortable that I'd be expected to pay the same fee as a dealer with a ten grand bass for sale.
[/quote]
Depends on where you're starting from, I guess.
If you were considering signing up to the Market specifically to sell a £150 bass, then the flat fee for both you and Foderas Are Us seems out of kilter.
But if you're already signed up with that flat fee paid, it hardly makes a difference whether you list a £5k Fodera that probably won't sell anyway, or you list 10 cheap basses that people might actually buy.
Marginal cost, old boy, marginal cost.