Speakers costing range of 2500-3500 per pair

Also, the speaker manufacturer cost to make a speaker, average formula 
is four to one of the factory wholesale cost. The retail wholesale cost for a $10K speaker is $6K. The total manufacturer cost to make that $10K  speaker including packaging and out the door, is $2400.00. This is why the majority of speaker companies build their cabinets with MDF panels,
since MDF is dirt cheap, and will not standardize bamboo panels as an alternative, since it would reduce their profit margins. 

^ No, that's because MDF is less resonant than bamboo. Plywood is one of the best materials, as the BBC concluded with actual research. You can read about it here: http://www.bbc.co.uk/rd/publications/rdreport_1977_03

helomech..you are off the mark. The report you refer to is from 1977. I looked at the two tables listing woods and composites and bamboo is nowhere to be found. Bamboo plywood is what I'm referring to is stronger than steel. Bamboo has a tensile strength of 28,000 and steel has a tensile strength of 23,000 and is three times stronger than oak. When layered in multiple sheets to form bamboo plywood, it has the highest dampening and resonating ability out of any organic material on the planet. Bamboo is King. Ascend Acoustics uses bamboo plywood for their top speakers which is why the Sierra Towers have a performance level typical of speakers in the $8K to $12K range. Back in 1977 no one even considered at the time to explore the science of bamboo material for the advancement of speaker cabinet structure.

So these Aries 936 cost the dealer approx $2400. I would think they also pay shipping which probably add another approx 200 costing total 2600 my thought was to offer him 3000.
one more question would the ascend towers match up with my Denon better then the Aries?

Nope. You need to dump the Denon. The Focal and Sierra are designed to handle major amplification. The Denon does not have the power reserve necessary to bring the Focal and Sierra to their best performance level. Dealers are like politicians, they'll tell you exactly what you want to hear. Rule of thumb matching an amplifier to a speaker for maximum performance. Under powering a speaker at high volume levels will heat up your drivers and cause damage. When a company list specs such as amp recommendation as " 100 to 300 watts " , always go for the max. To determine the correct amount of power, call the speaker company and talk to their tech designers, and ask them what is the maximum continuous power their woofer magnets can handle and divide by two. If you are told 500 watts, then 250 watts is what you need. The Parasound A21 amp would be an excellent choice at 250 watts per side and you could pick one up used, as an example. You always want your drivers current volume at least 50% at all times to keep your drivers and crossover components cool for the very best performance. I would go for the Sierra's, much cheaper since their factory direct and you would save about $700, sell the Denon and if your on a tight budget, pick up a used Class D integrated from Wyred 4 Sound, to provide the power you need.
Go to the Ascend Acoustics website and read the review by Enjoy the Music of the Sierra Towers. Review is outstanding.

                 www.ascendacoustics.com