I'm not going to try to capture all the various quotes and as Sig said we should get back on topic.
The ND filters, which I have do require adapter rings and all that is a hassle. But available if required.
Oh I dont do family portraits weddings or that many portraits.
The lenses I use are 77mm, its one size so everything is easier. You are right I didnt think about others.
based on price you go with the cheaper one
Sooooo not too sure what to say here
(yes I know what you mean
)
Professional photographers have multiple lenses, multiple camera bodies, multiple light stands, tripods, etc. Not sure why there seems to be such concern about multiple lighting kits.
Most of the professionals I work with have worse gear than me. Gear comes directly out of their pocket with out a supplemental income. Pro Am can get good gear because they have a job and the photography gig pays for the gear as well. The studio has rentals or the client pays for rentals. Keep in mind I am not shooting weddings or family portraits.

