So this is the difference in Merchandise, if you upgrade AT LEAST $500,000 (on your arena in 1 upgrade  (edit))
4/8/2024	Weekly Merchandise profit	$ 20 182	
4/15/2024	Weekly Merchandise profit	$ 18 018	
4/22/2024	Weekly Merchandise profit	$ 18 007	
4/29/2024	Weekly Merchandise profit	$ 19 493	
5/6/2024	Weekly Merchandise profit	$ 22 945	
5/13/2024	Weekly Merchandise profit	$ 24 265	
5/20/2024	Weekly Merchandise profit	$ 24 101	
5/27/2024	Weekly Merchandise profit	$ 24 867	
6/3/2024	Weekly Merchandise profit	$ 24 964	
6/10/2024	Weekly Merchandise profit	$ 24 858	
6/17/2024	Weekly Merchandise profit	$ 24 540	
6/24/2024	Weekly Merchandise profit	$ 25 871	
7/1/2024	Weekly Merchandise profit	$ 26 939	
7/8/2024	Weekly Merchandise profit	$ 25 261	
It goes down, when I don't have a home game that week.  Well a League Home game.  I know it sucks to wait that long, but over the course of 52 weeks,  you're looking  52x 8000= $416,000. (I split the difference between the high  and the low of 7k and 9k)
I  know that that is 3 upgrades, for me, so it would take 3 years to pay off, but that is only the difference, not including seat sales from attendance. 
Just thought I'd share some info with you guys.  
edited because I didn't  proof read it
Just  wanted to share  some  observations.
7/8/2024	Weekly Merchandise profit	$ 25 261	(last 1 I reported)
7/15/2024	Weekly Merchandise profit	$ 25 355	
7/22/2024	Weekly Merchandise profit	$ 25 869	
7/29/2024	Weekly Merchandise profit	$ 23 529	
So my Merch dropped $2340, this week.  This  seams  to have a direct relation to  game  attendence.   I recently raised prices,  and  lost fans.
7/27/2024	Kentucky Knights	7842  	804	137	      8	8791	Total
7/26/2024	Ticket Price Update	    9	         35	119	     800		
7/20/2024	Westland	               10838   	810	138	      8	11794  Total
So a 3003 reduction in  attendence cost me  $2340, in  merch and  $5288 loss in Bleacher ticket sales.
So packing those bleachers is  very important