End-user companies should track the financial health of their vendors to see if the vendor will be a collector or one of the collected. If the end-user company has a focused vendor, think of that vendor's health and help them become even better in your type of business. If your vendor is acquired, meet the new owners. The new owners motivation in buying your product and vendor was the install base and that's you. Showing interest is your part in keeping the relationship the way you want it.