Understandable. I think I've been spoiled by working at an electrical engineering firm with plenty of expensive soldering gear laying around that I can use
Plus the ability to change the boost and cutoff in case I ever end up repurposing the thing at a later date is attractive to me.
Say I decide to ditch the plate amp for your sub and get an EP2500 and a separate active crossover like the reckhorn. Then I've got the plate amp laying around. Maybe it gets used for some other cheap sub project somewhere else in the house, or for a friend. Suddenly I need the high cut up in the 25-30hz range. Get out the soldering iron and a few dollars worth of resistors and problem solved, cheap too!
I'm not arguing with you, I agree. I tend to forget that what works best for me is often not best for others.
Edit* I just looked more closely at the Dayton 500watt and realised that the EQ can be used to create a high cut, which I did not previously realise. You have taught me something today. For just about everyone that is an extra $25 well spent. Tho the Bash does have the possibility of a slightly lower high cut.