Why not use/buy regular sneakers on sales or from the outlet mall...

I am guessing that these are geared toward the cross fit demographic.
http://www.wiggle.co.uk/inov-8-fastlift-335-weightlifting-shoes-aw15/
The fastlift™ sets a new standard in weightlifting as the lightest product of its kind. With state-of-the-art weight lifting technology, the fastlift™ delivers stability, support and structure in the heel and mid foot.
Top Features of the Inov-8 Fastlift 335 Weightlifting Shoes (AW15)
Upper - Synthetic
Midsole - TPU
Sole - Fastlift™ - Cleat Depth 0mm
Fit : Standard
A wider toe box allows the toes to splay. Perfect for the forefoot striker, athletes with a wider foot and when lifting heavy weights.
Product Data
Surface: Gym
Shoe Weight: 335g (UK

Drop: 16.5mm
Stability and Support
With state-of-the-art weightlifting technology, the new fastlift™ delivers stability, support and structure in the heel and midfoot. The External Heel Cage (EHC) and Power-Truss system create strength for lifts without unnecessary weight.
Enahnced Functionality
Given the rigid nature of weightlifting shoes, there is often a need to change shoes to complete workouts beyond weightlifting. The fastlift™ utilises inov-8’s Meta-Flex™ system to enhance flexibility and comfort in the forefoot and features a sticky rubber outsole with indentations for added grip - all while coming in as the lightest product of its kind. With the new fastlift™ shoes, athletes can finish a WOD (workout of the day) without switching footwear.
Sticky™ Compound
Inov-8’s Sticky™ compound has been specially developed using climbing rubber technology. This rubber optimises grip in wet conditions, however the trade-off is it wears down quicker.
About the Inov-8 brand
Born in the UK in 2003, inov-8 manufactures specialist sports products in the off-road running and fitness markets. Renowned for designing lightweight footwear boasting the ultimate in grip, inov-8's shoes can be found on the feet of the world's most demanding competitors and adventurous athletes.