I met with the owner/manager of Vantora that does so much and more in regards to payments, reservations, website management and the like.
They told me it would only cost $375 a month for a sleek website to be built and maintained with the capacity to have a reservations system as well as a membership only portal. It also has the capacity to ship tons of emails to people (discounts, events, etc.).
I'm still extremely new (15 weeks) so this chunk of over head seemed less appealing than me just having an average push on FaceBook, Instagram, my own website via www.wix.com.
To get more info from these guys, www.vantora.com is the website. They manage roughly 1500+ small businesses (paintball, VR Arcades, Axe Throwing, etc.). I would very much like to use these guys as soon as my traffic may justify the need.
Hope that helps