Rambler
As an example - I've just printed eight 7mm scale axleboxes with leaf springs for a total material cost of 30.4 pence [according to the Chitubox slicing program]. These were printed on an Elegoo Saturn 8k printer using water washable resin. The actual print time was one hour and 31 minutes. On the odd occasion I send stl files away to be printed, that particular job would probably cost £40 for the print, £20 for the FedEx delivery and a vat charge of £12 on top of that. Turnaround time at best would be four days.
Agreed, these figures don't include the original outlay for the printer but the price is coming down [probably about £320 now for the equivalent printer].
For almost all purposes, the quality of a home resin print is fine. I tend to use print bureaux now if I need a large FDM print - e.g., a 7mm rerailer or a complete 7mm tube carriage to check fit of parts prior to printing it out in resin in segments. Obviously, there is a learning curve with 3D printers but I suspect the majority of problems are likley to be initially, alignment of the model and too few supports. Lots of advice available on YouTube videos on those two areas.
Financially, home printing makes sense.
Might even be worth asking on WT whether any of the members would do your printing for you!