A mid 2010? High Sierra is the last MacOS that can be installed on that so you’re good. You’ll probably need to upgrade your MacBook Pro if you haven’t done so already. If it already has an SSD inside, ignore the next paragraph.
High Sierra does not like to install onto a mechanical hard drive (HDD). Fortunately, installing a solid state drive (SSD) and transferring your data is very easy. If uncomfortable with doing it yourself, any Mac tech can do it for a nominal charge — even install the OS upgrade. If you buy the SSD from Amazon, they offer the service for a $105 add-on, last I checked (every tech I know charges a lot less including me). You may need to buy a keyboard cable ($10) as taking off the back often causes them to go bad.
I did upgrade the RAM to 8GB and put in an SSD a few years ago, which definitely supercharged it. However, it's on its second battery which is starting to fail, and the speakers are blown out (apparently much trickier to replace).
I've been researching upgrade options, but have heard mixed things about the newer models regarding the keyboard. It's rumored that a new 14" MacBook pro model might come out, with an improved keyboard, but I'm sure production has been significantly delayed. Given that we all might be home a lot more for awhile I might just opt for an iMac.
Batteries are easy on these. Speakers are tricky. I overhauled mine and my daughter's 2012s within the last couple of weeks and had to replace the wireless/bluetooth card in one of them.
New Minis and MacBook Airs with the butterfly keyboard were released yesterday. No 14" MacBook Pro, however. The 2019 model 13", 15.4" & 16" MBPs all have the butterfly keyboard so you're good there. Many have now hit the Refurb Store if looking for a bargain. Expand the + under Features to verify the keyboard.
Having said that, I rarely touch mine anymore except as a Catalina test machine (a 2012 can; 2010 can't). Everything else is done on my iMac.
I don't know that I'd spend that much. In fact, I bought mine on Amazon for a lot less. When these batteries get too bad, they expand and take out the insides. On a 2010 (or a pair of 2012s in my case), I don't mind rolling the dice — but I'm not you.
We're spoiled by the 8–10 hour battery life on recent laptops and tend to forget that new batteries in the old ones don't last that long—though an SSD inside helps a lot.