Mr Swirlbuster,
From up here in the bleachers from my perspective not knowing your current situation regarding microfiber towels it seems fairly obvious you are going to need 'some'. Upon review of your cart selection I can surmise you are planning a full detail from wash on up to seal, and if so then you will need 'alot' of microfiber towels.
I dont think anyone here would seriously suggest you use the same towel for drying, removing polish residue and wax/sealant leveling and since you stated budget restrictions that more or less makes the decision much easier.
Considering the amount of work you have planned ahead for your project I would be inclined to go with 'quantity over quality' so to speak for the time being, that is, whether it be a premium thick pile buffing towel or a lighter general purpose towel either is going to get clogged up with polish residue rendering it useless until it gets washed and dried.
Therefore having plenty on hand allows you to progress with the project, and a quick check shows the 16 pack is on promotion, thereby saving some money. Having a clean OK microfiber on hand is far better than having a soiled premium MF on hand.
The rest of your budget could be allocated toward some higher grade towels, more aligned with Final Polish removal and LSP leveling, as by then the paint system will be in its cleanest state and therefore its most sensitive.
Now as an alternative if you plan to divide up the project workload into smaller more manageable sections then the 'quantity over quality' philosophy doesnt really apply since in between sessions you'll be washing the towels anyway, in that case just divide up the remaining budget and get as many good quality towels as you can squeeze in.
Hint hint: Looks like the Mango Breeze 3 pack is on a 50% off promotion, lol thats a great deal!
Id almost just say get as many mango breeze as you can while the 50% lasts, and if possible squeeze in the Micro-Restore Detergent to keep em in good condition, it also happens to be on promotion but its not absolutely necessary.
However MF towel 'aquisition' turns out to be a particularly personal thing
There are many options available, it took me a long time to make the final judgment on my MF towel selection and it would have been far easier if there was a 50% off on Mango Breeze at the time lol, just sayin.
note: General consensus is 'you can never have too many mf towels'
Steve