This always comes up. The first question is; did you get your part directly from Marcum?
Let me start by saying Marcum has nothing to do with my explanation. All of these smaller outdoor companies are in the same boat. No pun intended.
I’ll try and explain it from their point of view.
Shipping charges are likely about $7-$8. The shipping shop rate is likely around $100/hr. To pick, pack, generate paperwork takes probably 10 minutes (about $16 if you’re keeping track). Not to mention the overhead for invoicing. Seems like a deal to me. Marcum probably takes a loss.
Bottom line is that Marcum an many other companies are not in business to process parts orders. That’s what watehouses are for. They likely don’t see enough parts orders to even consider it.