Well I wouldn't go as far as calling your table cheap as the entry level Rega's offer nice value for an "inexpensive" buy in.
Rather than as Elizabeth said making it less saleable on the used market should you choose to upgrade at some time in the future, you may consider this. Instead of buyng another arm similar to what you already have, simply purchase a new arm with a replaceable headshell. Buy another headshell and mount your mono cartridge to it.
Then you need only swap out the headshell and make minor necessary adjustment. You will gain a better arm and upgrade for using both cartridges in one step.
Cheers
Rather than as Elizabeth said making it less saleable on the used market should you choose to upgrade at some time in the future, you may consider this. Instead of buyng another arm similar to what you already have, simply purchase a new arm with a replaceable headshell. Buy another headshell and mount your mono cartridge to it.
Then you need only swap out the headshell and make minor necessary adjustment. You will gain a better arm and upgrade for using both cartridges in one step.
Cheers