You don't need all that equipment to work the same muscle groups. Honestly, a $45 set of resistance bands is a great buy and these haven't experienced the same supply runs that heavy, more obvious equipment has experienced.
Resistance bands are not even close to real weights. The feel is completely different and the resistance scales in a way that is counter productive for a lot of exercises. You don't have a constant measure of strength and progressive overload is impossible. Resistance bands are already as a supplement to free weight training but you can't get the same experience.