mac limit per VPLS domain

[Adam Vitkovsky <adam.vitkovsky () swan sk>]

I'm wondering what would be the sane default MAC limit per VPLS domain as
well as per port assuming the RSP can hold up to 512K MAC addresses please?
I believe the answer would partly depend on the business model (like I can
start with 2 MACs per port and 50 per domain and have customers to pay extra
for additional MACs) as well as expected number of VPLS customers/domains
Thank you