Some good advice, from both ends, re:pricing.
You can be cheap and cheerful, or very good and high end. You cannot be both.
If you go for the cheap end, you are competing against established processes with automated tools.
You are unlikely to be succesful in competing with them - unless you have a direct sales channel.
This may be captive market, uniqueness, relationships (clubs, known-avanues, location, affinity to a product or hobby or area of expertise etc).
Selling cheap seldom succeeds.
Ie unless you have sufficient margins, any success you may initially have will cripple you, as you cannot afford to expand, and cannot pay for the (usually very much more expensive) tools and processes you now need to produce in larger numbers.
Planning in terms of money is the most important issue.
The ONLY issue.
(Unless you get lucky. A huge nr of businesses work not because they did it well, but because they got lucky with product pricing/market and demand. Paypal and makerbot are two examples. So is ebay.)
YOU need to know YOUR numbers.
In my experience, 99% of people never do this.
Numbers means;
What does it cost ME to do A, in terms of pieces, hours, materials, opportunity costs.
Just because you are subsidising it from your garage, does not mean its free.
E.g. Plan it like this:
IF you cannot do item(s) b yourself, where can you get them ? At what cost ? How long does it take ? At what price do I now need to sell them ?
If you dont plan to pay yourself a salary (with taxes) you dont have a business, you have a hobby.
A succesful business makes profits.
Profits are what is left over after taxes, and paying off the machines, and paying off the workers.
Do you want to be a 10$/hr piecework worker ?
Both yes and no is fine.
Being honest with yourself is likely a good idea.
Once you have a written plan, ie spreadsheet, with numbers, the financial success is much more likely.
There is nothing wrong with a hobby that generates some extra cash.
Many mechanics and tinkerers (musicians, marine stuff, motorbike stuff, RC stuff, model-engineering, ewc.) do so.