Pre 2013 it was bad practice to have in excess of 100 links per page, google technical guideline.  Many SEO tools still use it as a warning bell. However Matt Cutts from google - I recall a few years ago - came out and categorically said it is NOT bad practice.  Have as many links as you like as long as it is natural and helps the customer.

What Matt did say is if it appears like spam, them google will penalize you accordingly. Here we go just found the video. https://www.youtube.com/watch?v=QHG6BkmzDEM

So to be clear - if the links are needed and help the customer - I would not concern myself.  Watch the video, nothing better than going straight to the source.

Hope that assists

I think Egol covers it very well.

I would not be changing pages if at all possible. What I would be considering is how to get the benefit/value of traction of 2015 pages for 2016 events. There are several options.

But it could be a revamped page, a CTA which you can click on to go to 2016 page etc.  Also if no page up yet after every 2015 event, you could put on the page "the 2016 events details are not known yet, however leave your email and we will contact you with details of the new event etc" - that gives an opportunity to collate details. You know your business better than anyone, so likely better strategies but the underlying principles enunciated by Egol is the way to go.

James

For a free report I would start with website.grader.com - a couple of screen grabs, Rand backed it a few weeks ago. For a very low cost report I would use semrush.com.

Hope that assists.

The question is to cryptic for me, can you clarify?

There is no issue in the perfect world each store has its own unique page with amazing content. The reality is that is not practical for some companies. For 50 stores I would be trying to get instructions to create unique pages for each store.  Local search drives such high traffic instore and it should be worth it.

Maps, opening hours, contact details, pics of the location and if the staff are good looking & fun - throw in a pic of them.

Hope that assists.

The below link is from google direct. Buying backlinks is an unacceptable practice.

https://support.google.com/webmasters/answer/66356?hl=en

The community view would be not to do it.

There are so many ways to get links with a little bit of effort, it is far smarter to head down that path. Plus and most importantly it lets you sleep at night. If you go down the dark side of a PBN etc. it will only be a timing issue until your site is penalized. Google is undertaking manual penalties it is doing whatever it can to thwart the practice. Some SEO companies will tell you they "outsmarted google"... 10,000 stamford graduates -v- a guy why just left his job as a security guard... I know who I would back.

Hope that assists...