What to buy

[ludespeedny]

I recently bought the Monoprice T6 towers and C6 center. With the sale on now and the promo code, I can get the B6's for $75/ea or the B5's for $85 for the pair.
I currently cant really mount the bookshelves, but am suffering from fear-of-missing-out since both these seem to be lowest price I have seen.
Any suggestions on which to buy, or should I hold off?

 

[staticV3]

Depending on what AVR you're using, perhaps you want to consider the Monoprice M518HT system as an inexpensive way to go beyond 5.0 surround?

It's been reviewed very favorably by Erin from EAC, with the only real drawback being limited output capabilities, which in your case should hardly come into play as you already have proper LCR speakers and the satellites would only be used as surround/height speakers.

 

[ludespeedny]

Currently running Pioneer VSX-LX301 as receiver.

 

[staticV3]

That one's capable of 7.1.2 Dolby Atmos.

The M518HT set would annoyingly leave you one satellite speaker short of the full set.
Perhaps Monoprice support would be willing to sell one extra satellite at a discount?