See and that's the issue with budgeting and buying equipment. It's not as easy as just meeting an immediate budget, but calculating down the
road as well. This is something people don't do very often and why often, in the long run, people spend a lot more than they need to. Churches and schools are the primary victims of this kind of spending as they have a hard time conceptualizing long term budgets and the frequent necessity of spending
more up front so as to spend
less down the
road.
This is really general advice as I've never worked with the mics you're looking at, but if construction is a question then it's a factor to consider. Also, remember that lavs
will break and are an expendable, so you need to have extra on
hand as well as be prepared to buy more. Then there are batteries.
I would do several budget scenarios. One of simply X channels (pack and receiver) of your Mipro and 1.2-1.5 times the number of channels in
microphone elements.
Then do several different totals that take into account different repair/replacement scenarios over time.
This whole thing should end up looking like a table with time on one axis and repairs on the other.
Now calculate buying the same
system, but of a higher quality brand/construction. If the whole
system stays intact for two years where the other would loose a few units after one, is there an advantage?
Also do some calculations for different rental/buying combinations. Maybe it's cheaper to buy a couple units to use year round and rent the rest at those busy times.
Ultimately it's going to be subjective to the person writing the check and in my experience, bureaucratic organizations don't understand long term budgets and would rather continually spend smaller amounts replacing and repairing then shelling out for a dependable setup.